diff --git a/migrations/20210602_introductions.sql b/migrations/20210602_introductions.sql
deleted file mode 100644
index 36bb7539c..000000000
--- a/migrations/20210602_introductions.sql
+++ /dev/null
@@ -1,27 +0,0 @@
-CREATE TABLE conn_intros (
-  intro_id BLOB NOT NULL PRIMARY KEY,
-  to_conn BLOB NOT NULL REFERENCES connections (conn_alias) ON DELETE CASCADE,
-  to_info BLOB, -- info about "to" connection sent to "re" connection
-  to_status TEXT NOT NULL DEFAULT '', -- '', INV, CON
-  re_conn BLOB NOT NULL REFERENCES connections (conn_alias) ON DELETE CASCADE,
-  re_info BLOB NOT NULL, -- info about "re" connection sent to "to" connection
-  re_status TEXT NOT NULL DEFAULT '', -- '', INV, CON
-  queue_info BLOB
-) WITHOUT ROWID;
-
-CREATE TABLE conn_invitations (
-  inv_id BLOB NOT NULL PRIMARY KEY,
-  via_conn BLOB REFERENCES connections (conn_alias) ON DELETE SET NULL,
-  external_intro_id BLOB NOT NULL,
-  conn_info BLOB, -- info about another connection
-  queue_info BLOB, -- NULL if it's an initial introduction
-  conn_id BLOB REFERENCES connections (conn_alias) -- created connection
-    ON DELETE CASCADE
-    DEFERRABLE INITIALLY DEFERRED,
-  status TEXT NOT NULL DEFAULT '' -- '', 'ACPT', 'CON'
-) WITHOUT ROWID;
-
-ALTER TABLE connections
-  ADD via_inv BLOB REFERENCES conn_invitations (inv_id) ON DELETE RESTRICT;
-ALTER TABLE connections
-  ADD conn_level INTEGER NOT NULL DEFAULT 0;
diff --git a/src/Simplex/Messaging/Agent.hs b/src/Simplex/Messaging/Agent.hs
index 69a3864c6..d66d2184e 100644
--- a/src/Simplex/Messaging/Agent.hs
+++ b/src/Simplex/Messaging/Agent.hs
@@ -41,22 +41,11 @@ module Simplex.Messaging.Agent
     disconnectAgentClient, -- used in tests
     createConnection,
     joinConnection,
-    allowConnection,
-    sendIntroduction,
-    acceptInvitation,
+    acceptConnection,
     subscribeConnection,
     sendMessage,
     suspendConnection,
     deleteConnection,
-    createConnection',
-    joinConnection',
-    allowConnection',
-    sendIntroduction',
-    acceptInvitation',
-    subscribeConnection',
-    sendMessage',
-    suspendConnection',
-    deleteConnection',
   )
 where
 
@@ -131,37 +120,17 @@ disconnectAgentClient c = closeAgentClient c >> logConnection c False
 -- |
 type AgentErrorMonad m = (MonadUnliftIO m, MonadError AgentErrorType m)
 
--- | Create SMP agent connection (NEW command) in Reader monad
-createConnection' :: AgentMonad m => AgentClient -> m (ConnId, SMPQueueInfo)
-createConnection' c = newConn c "" Nothing 0
-
 -- | Create SMP agent connection (NEW command)
 createConnection :: AgentErrorMonad m => AgentClient -> m (ConnId, SMPQueueInfo)
-createConnection c = (`runReaderT` agentEnv c) $ createConnection' c
-
--- | Join SMP agent connection (JOIN command) in Reader monad
-joinConnection' :: AgentMonad m => AgentClient -> SMPQueueInfo -> ConnInfo -> m ConnId
-joinConnection' c qInfo cInfo = joinConn c "" qInfo cInfo Nothing 0
+createConnection c = (`runReaderT` agentEnv c) $ newConn c ""
 
 -- | Join SMP agent connection (JOIN command)
 joinConnection :: AgentErrorMonad m => AgentClient -> SMPQueueInfo -> ConnInfo -> m ConnId
-joinConnection c = (`runReaderT` agentEnv c) .: joinConnection' c
+joinConnection c = (`runReaderT` agentEnv c) .: joinConn c ""
 
 -- | Approve confirmation (LET command)
-allowConnection :: AgentErrorMonad m => AgentClient -> ConnId -> ConfirmationId -> ConnInfo -> m ()
-allowConnection c = (`runReaderT` agentEnv c) .:. allowConnection' c
-
--- | Accept invitation (ACPT command) in Reader monad
-acceptInvitation' :: AgentMonad m => AgentClient -> InvitationId -> ConnInfo -> m ConnId
-acceptInvitation' c = acceptInv c ""
-
--- | Accept invitation (ACPT command)
-acceptInvitation :: AgentErrorMonad m => AgentClient -> InvitationId -> ConnInfo -> m ConnId
-acceptInvitation c = (`runReaderT` agentEnv c) .: acceptInvitation' c
-
--- | Send introduction of the second connection the first (INTRO command)
-sendIntroduction :: AgentErrorMonad m => AgentClient -> ConnId -> ConnId -> ConnInfo -> m ()
-sendIntroduction c = (`runReaderT` agentEnv c) .:. sendIntroduction' c
+acceptConnection :: AgentErrorMonad m => AgentClient -> ConnId -> ConfirmationId -> ConnInfo -> m ()
+acceptConnection c = (`runReaderT` agentEnv c) .:. acceptConnection' c
 
 -- | Subscribe to receive connection messages (SUB command)
 subscribeConnection :: AgentErrorMonad m => AgentClient -> ConnId -> m ()
@@ -250,32 +219,30 @@ withStore action = do
 -- | execute any SMP agent command
 processCommand :: forall m. AgentMonad m => AgentClient -> (ConnId, ACommand 'Client) -> m (ConnId, ACommand 'Agent)
 processCommand c (connId, cmd) = case cmd of
-  NEW -> second INV <$> newConn c connId Nothing 0
-  JOIN smpQueueInfo connInfo -> (,OK) <$> joinConn c connId smpQueueInfo connInfo Nothing 0
-  LET confId ownConnInfo -> allowConnection' c connId confId ownConnInfo $> (connId, OK)
-  INTRO reConnId reInfo -> sendIntroduction' c connId reConnId reInfo $> (connId, OK)
-  ACPT invId connInfo -> (,OK) <$> acceptInv c connId invId connInfo
+  NEW -> second INV <$> newConn c connId
+  JOIN smpQueueInfo connInfo -> (,OK) <$> joinConn c connId smpQueueInfo connInfo
+  ACPT confId ownConnInfo -> acceptConnection' c connId confId ownConnInfo $> (connId, OK)
   SUB -> subscribeConnection' c connId $> (connId, OK)
   SEND msgBody -> (connId,) . SENT . unId <$> sendMessage' c connId msgBody
   OFF -> suspendConnection' c connId $> (connId, OK)
   DEL -> deleteConnection' c connId $> (connId, OK)
 
-newConn :: AgentMonad m => AgentClient -> ConnId -> Maybe InvitationId -> Int -> m (ConnId, SMPQueueInfo)
-newConn c connId viaInv connLevel = do
+newConn :: AgentMonad m => AgentClient -> ConnId -> m (ConnId, SMPQueueInfo)
+newConn c connId = do
   srv <- getSMPServer
   (rq, qInfo) <- newRcvQueue c srv
   g <- asks idsDrg
-  let cData = ConnData {connId, viaInv, connLevel}
+  let cData = ConnData {connId}
   connId' <- withStore $ \st -> createRcvConn st g cData rq
   addSubscription c rq connId'
   pure (connId', qInfo)
 
-joinConn :: AgentMonad m => AgentClient -> ConnId -> SMPQueueInfo -> ConnInfo -> Maybe InvitationId -> Int -> m ConnId
-joinConn c connId qInfo cInfo viaInv connLevel = do
+joinConn :: AgentMonad m => AgentClient -> ConnId -> SMPQueueInfo -> ConnInfo -> m ConnId
+joinConn c connId qInfo cInfo = do
   (sq, senderKey, verifyKey) <- newSndQueue qInfo
   g <- asks idsDrg
   cfg <- asks config
-  let cData = ConnData {connId, viaInv, connLevel}
+  let cData = ConnData {connId}
   connId' <- withStore $ \st -> createSndConn st g cData sq
   confirmQueue c sq senderKey cInfo
   activateQueueJoining c connId' sq verifyKey $ retryInterval cfg
@@ -294,8 +261,8 @@ activateQueueJoining c connId sq verifyKey retryInterval =
       sendControlMessage c sq $ REPLY qInfo'
 
 -- | Approve confirmation (LET command) in Reader monad
-allowConnection' :: AgentMonad m => AgentClient -> ConnId -> ConfirmationId -> ConnInfo -> m ()
-allowConnection' c connId confId ownConnInfo =
+acceptConnection' :: AgentMonad m => AgentClient -> ConnId -> ConfirmationId -> ConnInfo -> m ()
+acceptConnection' c connId confId ownConnInfo =
   withStore (`getConn` connId) >>= \case
     SomeConn SCRcv (RcvConnection _ rq) -> do
       AcceptedConfirmation {senderKey} <- withStore $ \st -> acceptConfirmation st confId ownConnInfo
@@ -308,35 +275,6 @@ processConfirmation c rq sndKey = do
   secureQueue c rq sndKey
   withStore $ \st -> setRcvQueueStatus st rq Secured
 
--- | Send introduction of the second connection the first (INTRO command) in Reader monad
-sendIntroduction' :: AgentMonad m => AgentClient -> ConnId -> ConnId -> ConnInfo -> m ()
-sendIntroduction' c toConn reConn reInfo =
-  withStore (\st -> (,) <$> getConn st toConn <*> getConn st reConn) >>= \case
-    (SomeConn _ (DuplexConnection _ _ sq), SomeConn _ DuplexConnection {}) -> do
-      g <- asks idsDrg
-      introId <- withStore $ \st -> createIntro st g NewIntroduction {toConn, reConn, reInfo}
-      sendControlMessage c sq $ A_INTRO introId reInfo
-    _ -> throwError $ CONN SIMPLEX
-
-acceptInv :: AgentMonad m => AgentClient -> ConnId -> InvitationId -> ConnInfo -> m ConnId
-acceptInv c connId invId connInfo =
-  withStore (`getInvitation` invId) >>= \case
-    Invitation {viaConn, qInfo, externalIntroId, status = InvNew} ->
-      withStore (`getConn` viaConn) >>= \case
-        SomeConn _ (DuplexConnection ConnData {connLevel} _ sq) -> case qInfo of
-          Nothing -> do
-            (connId', qInfo') <- newConn c connId (Just invId) (connLevel + 1)
-            withStore $ \st -> addInvitationConn st invId connId'
-            sendControlMessage c sq $ A_INV externalIntroId qInfo' connInfo
-            pure connId'
-          Just qInfo' -> do
-            -- TODO remove invitations from protocol
-            connId' <- joinConn c connId qInfo' connInfo (Just invId) (connLevel + 1)
-            withStore $ \st -> addInvitationConn st invId connId'
-            pure connId'
-        _ -> throwError $ CONN SIMPLEX
-    _ -> throwError $ CMD PROHIBITED
-
 -- | Subscribe to receive connection messages (SUB command) in Reader monad
 subscribeConnection' :: forall m. AgentMonad m => AgentClient -> ConnId -> m ()
 subscribeConnection' c connId =
@@ -468,10 +406,6 @@ processSMPTransmission c@AgentClient {subQ} (srv, rId, cmd) = do
                 HELLO verifyKey _ -> helloMsg verifyKey msgBody
                 REPLY qInfo -> replyMsg qInfo
                 A_MSG body -> agentClientMsg previousMsgHash (senderMsgId, senderTimestamp) (srvMsgId, srvTs) body msgHash
-                A_INTRO introId cInfo -> introMsg introId cInfo
-                A_INV introId qInfo cInfo -> invMsg introId qInfo cInfo
-                A_REQ introId qInfo cInfo -> reqMsg introId qInfo cInfo
-                A_CON introId -> conMsg introId
           sendAck c rq
           return ()
         SMP.END -> do
@@ -497,7 +431,7 @@ processSMPTransmission c@AgentClient {subQ} (srv, rId, cmd) = do
                 g <- asks idsDrg
                 let newConfirmation = NewConfirmation {connId, senderKey, senderConnInfo = cInfo}
                 confId <- withStore $ \st -> createConfirmation st g newConfirmation
-                notify $ CONF confId cInfo
+                notify $ REQ confId cInfo
               SCDuplex -> do
                 notify $ INFO cInfo
                 processConfirmation c rq senderKey
@@ -530,60 +464,6 @@ processSMPTransmission c@AgentClient {subQ} (srv, rId, cmd) = do
               activateQueueInitiating c connId sq verifyKey $ retryInterval cfg
             _ -> prohibited
 
-        introMsg :: IntroId -> ConnInfo -> m ()
-        introMsg introId reInfo = do
-          logServer "<--" c srv rId "MSG <INTRO>"
-          case cType of
-            SCDuplex -> createInv introId Nothing reInfo
-            _ -> prohibited
-
-        invMsg :: IntroId -> SMPQueueInfo -> ConnInfo -> m ()
-        invMsg introId qInfo toInfo = do
-          logServer "<--" c srv rId "MSG <INV>"
-          case cType of
-            SCDuplex ->
-              withStore (`getIntro` introId) >>= \case
-                Introduction {toConn, toStatus = IntroNew, reConn, reStatus = IntroNew}
-                  | toConn /= connId -> prohibited
-                  | otherwise ->
-                    withStore (\st -> addIntroInvitation st introId toInfo qInfo >> getConn st reConn) >>= \case
-                      SomeConn _ (DuplexConnection _ _ sq) -> do
-                        sendControlMessage c sq $ A_REQ introId qInfo toInfo
-                        withStore $ \st -> setIntroReStatus st introId IntroInv
-                      _ -> prohibited
-                _ -> prohibited
-            _ -> prohibited
-
-        reqMsg :: IntroId -> SMPQueueInfo -> ConnInfo -> m ()
-        reqMsg introId qInfo connInfo = do
-          logServer "<--" c srv rId "MSG <REQ>"
-          case cType of
-            SCDuplex -> createInv introId (Just qInfo) connInfo
-            _ -> prohibited
-
-        createInv :: IntroId -> Maybe SMPQueueInfo -> ConnInfo -> m ()
-        createInv externalIntroId qInfo connInfo = do
-          g <- asks idsDrg
-          let newInv = NewInvitation {viaConn = connId, externalIntroId, connInfo, qInfo}
-          invId <- withStore $ \st -> createInvitation st g newInv
-          notify $ REQ invId connInfo
-
-        conMsg :: IntroId -> m ()
-        conMsg introId = do
-          logServer "<--" c srv rId "MSG <CON>"
-          withStore (`getIntro` introId) >>= \case
-            Introduction {toConn, toStatus, reConn, reStatus}
-              | toConn == connId && toStatus == IntroInv -> do
-                withStore $ \st -> setIntroToStatus st introId IntroCon
-                when (reStatus == IntroCon) $ sendConMsg toConn reConn
-              | reConn == connId && reStatus == IntroInv -> do
-                withStore $ \st -> setIntroReStatus st introId IntroCon
-                when (toStatus == IntroCon) $ sendConMsg toConn reConn
-              | otherwise -> prohibited
-          where
-            sendConMsg :: ConnId -> ConnId -> m ()
-            sendConMsg toConn reConn = atomically $ writeTBQueue subQ ("", toConn, ICON reConn)
-
         agentClientMsg :: PrevRcvMsgHash -> (ExternalSndId, ExternalSndTs) -> (BrokerId, BrokerTs) -> MsgBody -> MsgHash -> m ()
         agentClientMsg externalPrevSndHash sender broker msgBody internalHash = do
           logServer "<--" c srv rId "MSG <MSG>"
@@ -636,13 +516,7 @@ activateQueue c connId sq verifyKey retryInterval afterActivation =
        in withStore $ \st -> updateSignKey st sq safeSignKey
 
 notifyConnected :: AgentMonad m => AgentClient -> ConnId -> m ()
-notifyConnected c connId = do
-  withStore (`getConnInvitation` connId) >>= \case
-    Just (Invitation {invId, externalIntroId}, DuplexConnection _ _ sq) -> do
-      withStore $ \st -> setInvitationStatus st invId InvCon
-      sendControlMessage c sq $ A_CON externalIntroId
-    _ -> pure ()
-  atomically $ writeTBQueue (subQ c) ("", connId, CON)
+notifyConnected c connId = atomically $ writeTBQueue (subQ c) ("", connId, CON)
 
 newSndQueue ::
   (MonadUnliftIO m, MonadReader Env m) => SMPQueueInfo -> m (SndQueue, SenderPublicKey, VerificationKey)
diff --git a/src/Simplex/Messaging/Agent/Protocol.hs b/src/Simplex/Messaging/Agent/Protocol.hs
index 590ca63c5..b8f29e856 100644
--- a/src/Simplex/Messaging/Agent/Protocol.hs
+++ b/src/Simplex/Messaging/Agent/Protocol.hs
@@ -156,14 +156,10 @@ data ACommand (p :: AParty) where
   NEW :: ACommand Client -- response INV
   INV :: SMPQueueInfo -> ACommand Agent
   JOIN :: SMPQueueInfo -> ConnInfo -> ACommand Client -- response OK
-  CONF :: ConfirmationId -> ConnInfo -> ACommand Agent -- ConnInfo is from sender
-  LET :: ConfirmationId -> ConnInfo -> ACommand Client -- ConnInfo is from client
-  INTRO :: ConnId -> ConnInfo -> ACommand Client
-  REQ :: InvitationId -> ConnInfo -> ACommand Agent
-  ACPT :: InvitationId -> ConnInfo -> ACommand Client
+  REQ :: ConfirmationId -> ConnInfo -> ACommand Agent -- ConnInfo is from sender
+  ACPT :: ConfirmationId -> ConnInfo -> ACommand Client -- ConnInfo is from client
   INFO :: ConnInfo -> ACommand Agent
   CON :: ACommand Agent -- notification that connection is established
-  ICON :: ConnId -> ACommand Agent
   SUB :: ACommand Client
   END :: ACommand Agent
   -- QST :: QueueDirection -> ACommand Client
@@ -225,14 +221,6 @@ data AMessage where
   REPLY :: SMPQueueInfo -> AMessage
   -- | agent envelope for the client message
   A_MSG :: MsgBody -> AMessage
-  -- | agent message for introduction
-  A_INTRO :: IntroId -> ConnInfo -> AMessage
-  -- | agent envelope for the sent invitation
-  A_INV :: IntroId -> SMPQueueInfo -> ConnInfo -> AMessage
-  -- | agent envelope for the forwarded invitation
-  A_REQ :: IntroId -> SMPQueueInfo -> ConnInfo -> AMessage
-  -- | agent message for intro/group request
-  A_CON :: IntroId -> AMessage
   deriving (Show)
 
 -- | Parse SMP message.
@@ -273,19 +261,10 @@ agentMessageP =
   "HELLO " *> hello
     <|> "REPLY " *> reply
     <|> "MSG " *> a_msg
-    <|> "INTRO " *> a_intro
-    <|> "INV " *> a_inv
-    <|> "REQ " *> a_req
-    <|> "CON " *> a_con
   where
     hello = HELLO <$> C.pubKeyP <*> ackMode
     reply = REPLY <$> smpQueueInfoP
     a_msg = A_MSG <$> binaryBodyP <* A.endOfLine
-    a_intro = A_INTRO <$> A.takeTill (== ' ') <* A.space <*> binaryBodyP <* A.endOfLine
-    a_inv = invP A_INV
-    a_req = invP A_REQ
-    a_con = A_CON <$> A.takeTill wordEnd
-    invP f = f <$> A.takeTill (== ' ') <* A.space <*> smpQueueInfoP <* A.space <*> binaryBodyP <* A.endOfLine
     ackMode = AckMode <$> (" NO_ACK" $> Off <|> pure On)
 
 -- | SMP queue information parser.
@@ -306,13 +285,6 @@ serializeAgentMessage = \case
   HELLO verifyKey ackMode -> "HELLO " <> C.serializePubKey verifyKey <> if ackMode == AckMode Off then " NO_ACK" else ""
   REPLY qInfo -> "REPLY " <> serializeSmpQueueInfo qInfo
   A_MSG body -> "MSG " <> serializeBinary body <> "\n"
-  A_INTRO introId cInfo -> "INTRO " <> introId <> " " <> serializeBinary cInfo <> "\n"
-  A_INV introId qInfo cInfo -> "INV " <> serializeInv introId qInfo cInfo
-  A_REQ introId qInfo cInfo -> "REQ " <> serializeInv introId qInfo cInfo
-  A_CON introId -> "CON " <> introId
-  where
-    serializeInv introId qInfo cInfo =
-      B.intercalate " " [introId, serializeSmpQueueInfo qInfo, serializeBinary cInfo] <> "\n"
 
 -- | Serialize SMP queue information that is sent out-of-band.
 serializeSmpQueueInfo :: SMPQueueInfo -> ByteString
@@ -478,9 +450,6 @@ commandP =
   "NEW" $> ACmd SClient NEW
     <|> "INV " *> invResp
     <|> "JOIN " *> joinCmd
-    <|> "CONF " *> confCmd
-    <|> "LET " *> letCmd
-    <|> "INTRO " *> introCmd
     <|> "REQ " *> reqCmd
     <|> "ACPT " *> acptCmd
     <|> "INFO " *> infoCmd
@@ -492,21 +461,16 @@ commandP =
     <|> "OFF" $> ACmd SClient OFF
     <|> "DEL" $> ACmd SClient DEL
     <|> "ERR " *> agentError
-    <|> "ICON " *> iconMsg
     <|> "CON" $> ACmd SAgent CON
     <|> "OK" $> ACmd SAgent OK
   where
     invResp = ACmd SAgent . INV <$> smpQueueInfoP
     joinCmd = ACmd SClient <$> (JOIN <$> smpQueueInfoP <* A.space <*> A.takeByteString)
-    confCmd = ACmd SAgent <$> (CONF <$> A.takeTill (== ' ') <* A.space <*> A.takeByteString)
-    letCmd = ACmd SClient <$> (LET <$> A.takeTill (== ' ') <* A.space <*> A.takeByteString)
-    introCmd = ACmd SClient <$> introP INTRO
-    reqCmd = ACmd SAgent <$> introP REQ
-    acptCmd = ACmd SClient <$> introP ACPT
+    reqCmd = ACmd SAgent <$> (REQ <$> A.takeTill (== ' ') <* A.space <*> A.takeByteString)
+    acptCmd = ACmd SClient <$> (ACPT <$> A.takeTill (== ' ') <* A.space <*> A.takeByteString)
     infoCmd = ACmd SAgent . INFO <$> A.takeByteString
     sendCmd = ACmd SClient . SEND <$> A.takeByteString
     sentResp = ACmd SAgent . SENT <$> A.decimal
-    iconMsg = ACmd SAgent . ICON <$> A.takeTill wordEnd
     message = ACmd SAgent <$> (MSG <$> msgMetaP <* A.space <*> A.takeByteString)
     msgMetaP = do
       integrity <- msgIntegrityP
@@ -514,7 +478,6 @@ commandP =
       broker <- " B=" *> partyMeta base64P
       sender <- " S=" *> partyMeta A.decimal
       pure MsgMeta {integrity, recipient, broker, sender}
-    introP f = f <$> A.takeTill (== ' ') <* A.space <*> A.takeByteString
     partyMeta idParser = (,) <$> idParser <* "," <*> tsISO8601P
     agentError = ACmd SAgent . ERR <$> agentErrorTypeP
 
@@ -537,11 +500,8 @@ serializeCommand = \case
   NEW -> "NEW"
   INV qInfo -> "INV " <> serializeSmpQueueInfo qInfo
   JOIN qInfo cInfo -> "JOIN " <> serializeSmpQueueInfo qInfo <> " " <> serializeBinary cInfo
-  CONF confId cInfo -> "CONF " <> confId <> " " <> serializeBinary cInfo
-  LET confId cInfo -> "LET " <> confId <> " " <> serializeBinary cInfo
-  INTRO connId cInfo -> "INTRO " <> connId <> " " <> serializeBinary cInfo
-  REQ invId cInfo -> "REQ " <> invId <> " " <> serializeBinary cInfo
-  ACPT invId cInfo -> "ACPT " <> invId <> " " <> serializeBinary cInfo
+  REQ confId cInfo -> "REQ " <> confId <> " " <> serializeBinary cInfo
+  ACPT confId cInfo -> "ACPT " <> confId <> " " <> serializeBinary cInfo
   INFO cInfo -> "INFO " <> serializeBinary cInfo
   SUB -> "SUB"
   END -> "END"
@@ -552,7 +512,6 @@ serializeCommand = \case
   OFF -> "OFF"
   DEL -> "DEL"
   CON -> "CON"
-  ICON connId -> "ICON " <> connId
   ERR e -> "ERR " <> serializeAgentError e
   OK -> "OK"
   where
@@ -640,7 +599,6 @@ tGet party h = liftIO (tGetRaw h) >>= tParseLoadBody
       -- NEW, JOIN and ACPT have optional connId
       NEW -> Right cmd
       JOIN {} -> Right cmd
-      ACPT {} -> Right cmd
       -- ERROR response does not always have connId
       ERR _ -> Right cmd
       -- other responses must have connId
@@ -652,12 +610,9 @@ tGet party h = liftIO (tGetRaw h) >>= tParseLoadBody
     cmdWithMsgBody = \case
       SEND body -> SEND <$$> getBody body
       MSG msgMeta body -> MSG msgMeta <$$> getBody body
-      INTRO introId cInfo -> INTRO introId <$$> getBody cInfo
-      REQ introId cInfo -> REQ introId <$$> getBody cInfo
-      ACPT introId cInfo -> ACPT introId <$$> getBody cInfo
       JOIN qInfo cInfo -> JOIN qInfo <$$> getBody cInfo
-      CONF confId cInfo -> CONF confId <$$> getBody cInfo
-      LET confId cInfo -> LET confId <$$> getBody cInfo
+      REQ confId cInfo -> REQ confId <$$> getBody cInfo
+      ACPT confId cInfo -> ACPT confId <$$> getBody cInfo
       INFO cInfo -> INFO <$$> getBody cInfo
       cmd -> pure $ Right cmd
 
diff --git a/src/Simplex/Messaging/Agent/Store.hs b/src/Simplex/Messaging/Agent/Store.hs
index 6b49ad280..72f157397 100644
--- a/src/Simplex/Messaging/Agent/Store.hs
+++ b/src/Simplex/Messaging/Agent/Store.hs
@@ -3,9 +3,7 @@
 {-# LANGUAGE DuplicateRecordFields #-}
 {-# LANGUAGE GADTs #-}
 {-# LANGUAGE KindSignatures #-}
-{-# LANGUAGE LambdaCase #-}
 {-# LANGUAGE MultiParamTypeClasses #-}
-{-# LANGUAGE OverloadedStrings #-}
 {-# LANGUAGE StandaloneDeriving #-}
 {-# OPTIONS_GHC -fno-warn-unticked-promoted-constructors #-}
 
@@ -17,7 +15,6 @@ import Crypto.Random (ChaChaDRG)
 import Data.ByteString.Char8 (ByteString)
 import Data.Int (Int64)
 import Data.Kind (Type)
-import Data.Text (Text)
 import Data.Time (UTCTime)
 import Data.Type.Equality
 import Simplex.Messaging.Agent.Protocol
@@ -61,18 +58,6 @@ class Monad m => MonadAgentStore s m where
   createSndMsg :: s -> ConnId -> SndMsgData -> m ()
   getMsg :: s -> ConnId -> InternalId -> m Msg
 
-  -- Introductions
-  createIntro :: s -> TVar ChaChaDRG -> NewIntroduction -> m IntroId
-  getIntro :: s -> IntroId -> m Introduction
-  addIntroInvitation :: s -> IntroId -> ConnInfo -> SMPQueueInfo -> m ()
-  setIntroToStatus :: s -> IntroId -> IntroStatus -> m ()
-  setIntroReStatus :: s -> IntroId -> IntroStatus -> m ()
-  createInvitation :: s -> TVar ChaChaDRG -> NewInvitation -> m InvitationId
-  getInvitation :: s -> InvitationId -> m Invitation
-  addInvitationConn :: s -> InvitationId -> ConnId -> m ()
-  getConnInvitation :: s -> ConnId -> m (Maybe (Invitation, Connection CDuplex))
-  setInvitationStatus :: s -> InvitationId -> InvitationStatus -> m ()
-
 -- * Queue types
 
 -- | A receive queue. SMP queue through which the agent receives messages from a sender.
@@ -153,7 +138,7 @@ instance Eq SomeConn where
 
 deriving instance Show SomeConn
 
-data ConnData = ConnData {connId :: ConnId, viaInv :: Maybe InvitationId, connLevel :: Int}
+newtype ConnData = ConnData {connId :: ConnId}
   deriving (Eq, Show)
 
 -- * Confirmation types
@@ -308,75 +293,6 @@ newtype InternalId = InternalId {unId :: Int64} deriving (Eq, Show)
 
 type InternalTs = UTCTime
 
--- * Introduction types
-
-data NewIntroduction = NewIntroduction
-  { toConn :: ConnId,
-    reConn :: ConnId,
-    reInfo :: ByteString
-  }
-
-data Introduction = Introduction
-  { introId :: IntroId,
-    toConn :: ConnId,
-    toInfo :: Maybe ByteString,
-    toStatus :: IntroStatus,
-    reConn :: ConnId,
-    reInfo :: ByteString,
-    reStatus :: IntroStatus,
-    qInfo :: Maybe SMPQueueInfo
-  }
-
-data IntroStatus = IntroNew | IntroInv | IntroCon
-  deriving (Eq)
-
-serializeIntroStatus :: IntroStatus -> Text
-serializeIntroStatus = \case
-  IntroNew -> ""
-  IntroInv -> "INV"
-  IntroCon -> "CON"
-
-introStatusT :: Text -> Maybe IntroStatus
-introStatusT = \case
-  "" -> Just IntroNew
-  "INV" -> Just IntroInv
-  "CON" -> Just IntroCon
-  _ -> Nothing
-
-data NewInvitation = NewInvitation
-  { viaConn :: ConnId,
-    externalIntroId :: IntroId,
-    connInfo :: ConnInfo,
-    qInfo :: Maybe SMPQueueInfo
-  }
-
-data Invitation = Invitation
-  { invId :: InvitationId,
-    viaConn :: ConnId,
-    externalIntroId :: IntroId,
-    connInfo :: ConnInfo,
-    qInfo :: Maybe SMPQueueInfo,
-    connId :: Maybe ConnId,
-    status :: InvitationStatus
-  }
-  deriving (Show)
-
-data InvitationStatus = InvNew | InvAcpt | InvCon
-  deriving (Eq, Show)
-
-serializeInvStatus :: InvitationStatus -> Text
-serializeInvStatus = \case
-  InvNew -> ""
-  InvAcpt -> "ACPT"
-  InvCon -> "CON"
-
-invStatusT :: Text -> Maybe InvitationStatus
-invStatusT = \case
-  "" -> Just InvNew
-  "ACPT" -> Just InvAcpt
-  "CON" -> Just InvCon
-  _ -> Nothing
-
 -- * Store errors
 
 -- | Agent store error.
@@ -394,10 +310,6 @@ data StoreError
     SEBadConnType ConnType
   | -- | Confirmation not found.
     SEConfirmationNotFound
-  | -- | Introduction ID not found.
-    SEIntroNotFound
-  | -- | Invitation ID not found.
-    SEInvitationNotFound
   | -- | Currently not used. The intention was to pass current expected queue status in methods,
     -- as we always know what it should be at any stage of the protocol,
     -- and in case it does not match use this error.
diff --git a/src/Simplex/Messaging/Agent/Store/SQLite.hs b/src/Simplex/Messaging/Agent/Store/SQLite.hs
index 6f18a9f8b..f6d2e2fd9 100644
--- a/src/Simplex/Messaging/Agent/Store/SQLite.hs
+++ b/src/Simplex/Messaging/Agent/Store/SQLite.hs
@@ -29,7 +29,7 @@ where
 import Control.Concurrent (threadDelay)
 import Control.Concurrent.STM
 import Control.Exception (bracket)
-import Control.Monad (join, replicateM_, unless, when)
+import Control.Monad (replicateM_, unless, when)
 import Control.Monad.Except (MonadError (throwError), MonadIO (liftIO))
 import Control.Monad.IO.Unlift (MonadUnliftIO)
 import Crypto.Random (ChaChaDRG, randomBytesGenerate)
@@ -395,151 +395,6 @@ instance (MonadUnliftIO m, MonadError StoreError m) => MonadAgentStore SQLiteSto
   getMsg :: SQLiteStore -> ConnId -> InternalId -> m Msg
   getMsg _st _connAlias _id = throwError SENotImplemented
 
-  createIntro :: SQLiteStore -> TVar ChaChaDRG -> NewIntroduction -> m IntroId
-  createIntro st gVar NewIntroduction {toConn, reConn, reInfo} =
-    liftIOEither . withTransaction st $ \db ->
-      createWithRandomId gVar $ \introId ->
-        DB.execute
-          db
-          [sql|
-            INSERT INTO conn_intros
-            (intro_id, to_conn, re_conn, re_info) VALUES (?, ?, ?, ?);
-          |]
-          (introId, toConn, reConn, reInfo)
-
-  getIntro :: SQLiteStore -> IntroId -> m Introduction
-  getIntro st introId =
-    liftIOEither . withConnection st $ \db ->
-      intro
-        <$> DB.query
-          db
-          [sql|
-            SELECT to_conn, to_info, to_status, re_conn, re_info, re_status, queue_info
-            FROM conn_intros
-            WHERE intro_id = ?;
-          |]
-          (Only introId)
-    where
-      intro [(toConn, toInfo, toStatus, reConn, reInfo, reStatus, qInfo)] =
-        Right $ Introduction {introId, toConn, toInfo, toStatus, reConn, reInfo, reStatus, qInfo}
-      intro _ = Left SEIntroNotFound
-
-  addIntroInvitation :: SQLiteStore -> IntroId -> ConnInfo -> SMPQueueInfo -> m ()
-  addIntroInvitation st introId toInfo qInfo =
-    liftIO . withTransaction st $ \db ->
-      DB.executeNamed
-        db
-        [sql|
-          UPDATE conn_intros
-          SET to_info = :to_info,
-              queue_info = :queue_info,
-              to_status = :to_status
-          WHERE intro_id = :intro_id;
-        |]
-        [ ":to_info" := toInfo,
-          ":queue_info" := Just qInfo,
-          ":to_status" := IntroInv,
-          ":intro_id" := introId
-        ]
-
-  setIntroToStatus :: SQLiteStore -> IntroId -> IntroStatus -> m ()
-  setIntroToStatus st introId toStatus =
-    liftIO . withTransaction st $ \db ->
-      DB.execute
-        db
-        [sql|
-          UPDATE conn_intros
-          SET to_status = ?
-          WHERE intro_id = ?;
-        |]
-        (toStatus, introId)
-
-  setIntroReStatus :: SQLiteStore -> IntroId -> IntroStatus -> m ()
-  setIntroReStatus st introId reStatus =
-    liftIO . withTransaction st $ \db ->
-      DB.execute
-        db
-        [sql|
-          UPDATE conn_intros
-          SET re_status = ?
-          WHERE intro_id = ?;
-        |]
-        (reStatus, introId)
-
-  createInvitation :: SQLiteStore -> TVar ChaChaDRG -> NewInvitation -> m InvitationId
-  createInvitation st gVar NewInvitation {viaConn, externalIntroId, connInfo, qInfo} =
-    liftIOEither . withTransaction st $ \db ->
-      createWithRandomId gVar $ \invId ->
-        DB.execute
-          db
-          [sql|
-            INSERT INTO conn_invitations
-            (inv_id, via_conn, external_intro_id, conn_info, queue_info) VALUES (?, ?, ?, ?, ?);
-          |]
-          (invId, viaConn, externalIntroId, connInfo, qInfo)
-
-  getInvitation :: SQLiteStore -> InvitationId -> m Invitation
-  getInvitation st invId =
-    liftIOEither . withConnection st $ \db ->
-      invitation
-        <$> DB.query
-          db
-          [sql|
-            SELECT via_conn, external_intro_id, conn_info, queue_info, conn_id, status
-            FROM conn_invitations
-            WHERE inv_id = ?;
-          |]
-          (Only invId)
-    where
-      invitation [(viaConn, externalIntroId, connInfo, qInfo, connId, status)] =
-        Right $ Invitation {invId, viaConn, externalIntroId, connInfo, qInfo, connId, status}
-      invitation _ = Left SEInvitationNotFound
-
-  addInvitationConn :: SQLiteStore -> InvitationId -> ConnId -> m ()
-  addInvitationConn st invId connId =
-    liftIO . withTransaction st $ \db ->
-      DB.executeNamed
-        db
-        [sql|
-          UPDATE conn_invitations
-          SET conn_id = :conn_id, status = :status
-          WHERE inv_id = :inv_id;
-        |]
-        [":conn_id" := connId, ":status" := InvAcpt, ":inv_id" := invId]
-
-  getConnInvitation :: SQLiteStore -> ConnId -> m (Maybe (Invitation, Connection 'CDuplex))
-  getConnInvitation st cId =
-    liftIO . withTransaction st $ \db ->
-      DB.query
-        db
-        [sql|
-          SELECT inv_id, via_conn, external_intro_id, conn_info, queue_info, status
-          FROM conn_invitations
-          WHERE conn_id = ?;
-        |]
-        (Only cId)
-        >>= fmap join . traverse (getViaConn db) . invitation
-    where
-      invitation [(invId, viaConn, externalIntroId, connInfo, qInfo, status)] =
-        Just $ Invitation {invId, viaConn, externalIntroId, connInfo, qInfo, connId = Just cId, status}
-      invitation _ = Nothing
-      getViaConn :: DB.Connection -> Invitation -> IO (Maybe (Invitation, Connection 'CDuplex))
-      getViaConn db inv@Invitation {viaConn} = fmap (inv,) . duplexConn <$> getConn_ db viaConn
-      duplexConn :: Either StoreError SomeConn -> Maybe (Connection 'CDuplex)
-      duplexConn (Right (SomeConn SCDuplex conn)) = Just conn
-      duplexConn _ = Nothing
-
-  setInvitationStatus :: SQLiteStore -> InvitationId -> InvitationStatus -> m ()
-  setInvitationStatus st invId status =
-    liftIO . withTransaction st $ \db ->
-      DB.execute
-        db
-        [sql|
-          UPDATE conn_invitations
-          SET status = ? WHERE inv_id = ?;
-        |]
-        (status, invId)
-
 -- * Auxiliary helpers
 
 -- ? replace with ToField? - it's easy to forget to use this
@@ -574,14 +429,6 @@ instance ToField MsgIntegrity where toField = toField . serializeMsgIntegrity
 
 instance FromField MsgIntegrity where fromField = blobFieldParser msgIntegrityP
 
-instance ToField IntroStatus where toField = toField . serializeIntroStatus
-
-instance FromField IntroStatus where fromField = fromTextField_ introStatusT
-
-instance ToField InvitationStatus where toField = toField . serializeInvStatus
-
-instance FromField InvitationStatus where fromField = fromTextField_ invStatusT
-
 instance ToField SMPQueueInfo where toField = toField . serializeSmpQueueInfo
 
 instance FromField SMPQueueInfo where fromField = blobFieldParser smpQueueInfoP
@@ -646,22 +493,20 @@ insertRcvQueue_ dbConn connId RcvQueue {..} = do
     ]
 
 insertRcvConnection_ :: DB.Connection -> ConnData -> RcvQueue -> IO ()
-insertRcvConnection_ dbConn ConnData {connId, viaInv, connLevel} RcvQueue {server, rcvId} = do
+insertRcvConnection_ dbConn ConnData {connId} RcvQueue {server, rcvId} = do
   let port_ = serializePort_ $ port server
   DB.executeNamed
     dbConn
     [sql|
       INSERT INTO connections
-        ( conn_alias, rcv_host, rcv_port, rcv_id, snd_host, snd_port, snd_id, via_inv, conn_level, last_internal_msg_id, last_internal_rcv_msg_id, last_internal_snd_msg_id, last_external_snd_msg_id, last_rcv_msg_hash, last_snd_msg_hash)
+        ( conn_alias, rcv_host, rcv_port, rcv_id, snd_host, snd_port, snd_id, last_internal_msg_id, last_internal_rcv_msg_id, last_internal_snd_msg_id, last_external_snd_msg_id, last_rcv_msg_hash, last_snd_msg_hash)
       VALUES
-        (:conn_alias,:rcv_host,:rcv_port,:rcv_id, NULL,     NULL,     NULL,  :via_inv,:conn_level, 0, 0, 0, 0, x'', x'');
+        (:conn_alias,:rcv_host,:rcv_port,:rcv_id, NULL,     NULL,     NULL, 0, 0, 0, 0, x'', x'');
     |]
     [ ":conn_alias" := connId,
       ":rcv_host" := host server,
       ":rcv_port" := port_,
-      ":rcv_id" := rcvId,
-      ":via_inv" := viaInv,
-      ":conn_level" := connLevel
+      ":rcv_id" := rcvId
     ]
 
 -- * createSndConn helpers
@@ -688,22 +533,20 @@ insertSndQueue_ dbConn connId SndQueue {..} = do
     ]
 
 insertSndConnection_ :: DB.Connection -> ConnData -> SndQueue -> IO ()
-insertSndConnection_ dbConn ConnData {connId, viaInv, connLevel} SndQueue {server, sndId} = do
+insertSndConnection_ dbConn ConnData {connId} SndQueue {server, sndId} = do
   let port_ = serializePort_ $ port server
   DB.executeNamed
     dbConn
     [sql|
       INSERT INTO connections
-        ( conn_alias, rcv_host, rcv_port, rcv_id, snd_host, snd_port, snd_id, via_inv, conn_level, last_internal_msg_id, last_internal_rcv_msg_id, last_internal_snd_msg_id, last_external_snd_msg_id, last_rcv_msg_hash, last_snd_msg_hash)
+        ( conn_alias, rcv_host, rcv_port, rcv_id, snd_host, snd_port, snd_id, last_internal_msg_id, last_internal_rcv_msg_id, last_internal_snd_msg_id, last_external_snd_msg_id, last_rcv_msg_hash, last_snd_msg_hash)
       VALUES
-        (:conn_alias, NULL,     NULL,     NULL,  :snd_host,:snd_port,:snd_id,:via_inv,:conn_level, 0, 0, 0, 0, x'', x'');
+        (:conn_alias, NULL,     NULL,     NULL,  :snd_host,:snd_port,:snd_id, 0, 0, 0, 0, x'', x'');
     |]
     [ ":conn_alias" := connId,
       ":snd_host" := host server,
       ":snd_port" := port_,
-      ":snd_id" := sndId,
-      ":via_inv" := viaInv,
-      ":conn_level" := connLevel
+      ":snd_id" := sndId
     ]
 
 -- * getConn helpers
@@ -722,11 +565,11 @@ getConn_ dbConn connId =
         _ -> Left SEConnNotFound
 
 getConnData_ :: DB.Connection -> ConnId -> IO (Maybe ConnData)
-getConnData_ dbConn connId =
+getConnData_ dbConn connId' =
   connData
-    <$> DB.query dbConn "SELECT via_inv, conn_level FROM connections WHERE conn_alias = ?;" (Only connId)
+    <$> DB.query dbConn "SELECT conn_alias FROM connections WHERE conn_alias = ?;" (Only connId')
   where
-    connData [(viaInv, connLevel)] = Just ConnData {connId, viaInv, connLevel}
+    connData [Only connId] = Just ConnData {connId}
     connData _ = Nothing
 
 getRcvQueueByConnAlias_ :: DB.Connection -> ConnId -> IO (Maybe RcvQueue)
diff --git a/tests/AgentTests.hs b/tests/AgentTests.hs
index e8faf5ea9..59b4ceb49 100644
--- a/tests/AgentTests.hs
+++ b/tests/AgentTests.hs
@@ -45,11 +45,6 @@ agentTests (ATransport t) = do
       smpAgentTest3_1_1 $ testSubscription t
     it "should send notifications to client when server disconnects" $
       smpAgentServerTest $ testSubscrNotification t
-  describe "Introduction" do
-    it "should send and accept introduction" $
-      smpAgentTest3 $ testIntroduction t
-    it "should send and accept introduction (random IDs)" $
-      smpAgentTest3 $ testIntroductionRandomIds t
 
 -- | receive message to handle `h`
 (<#:) :: Transport c => c -> IO (ATransmissionOrError 'Agent)
@@ -99,8 +94,8 @@ testDuplexConnection _ alice bob = do
   ("1", "bob", Right (INV qInfo)) <- alice #: ("1", "bob", "NEW")
   let qInfo' = serializeSmpQueueInfo qInfo
   bob #: ("11", "alice", "JOIN " <> qInfo' <> " 14\nbob's connInfo") #> ("11", "alice", OK)
-  ("", "bob", Right (CONF confId "bob's connInfo")) <- (alice <#:)
-  alice #: ("2", "bob", "LET " <> confId <> " 16\nalice's connInfo") #> ("2", "bob", OK)
+  ("", "bob", Right (REQ confId "bob's connInfo")) <- (alice <#:)
+  alice #: ("2", "bob", "ACPT " <> confId <> " 16\nalice's connInfo") #> ("2", "bob", OK)
   bob <# ("", "alice", INFO "alice's connInfo")
   bob <# ("", "alice", CON)
   alice <# ("", "bob", CON)
@@ -122,9 +117,9 @@ testDuplexConnRandomIds _ alice bob = do
   ("1", bobConn, Right (INV qInfo)) <- alice #: ("1", "", "NEW")
   let qInfo' = serializeSmpQueueInfo qInfo
   ("11", aliceConn, Right OK) <- bob #: ("11", "", "JOIN " <> qInfo' <> " 14\nbob's connInfo")
-  ("", bobConn', Right (CONF confId "bob's connInfo")) <- (alice <#:)
+  ("", bobConn', Right (REQ confId "bob's connInfo")) <- (alice <#:)
   bobConn' `shouldBe` bobConn
-  alice #: ("2", bobConn, "LET " <> confId <> " 16\nalice's connInfo") =#> \case ("2", c, OK) -> c == bobConn; _ -> False
+  alice #: ("2", bobConn, "ACPT " <> confId <> " 16\nalice's connInfo") =#> \case ("2", c, OK) -> c == bobConn; _ -> False
   bob <# ("", aliceConn, INFO "alice's connInfo")
   bob <# ("", aliceConn, CON)
   alice <# ("", bobConn, CON)
@@ -161,62 +156,13 @@ testSubscrNotification _ (server, _) client = do
   killThread server
   client <# ("", "conn1", END)
 
-testIntroduction :: forall c. Transport c => TProxy c -> c -> c -> c -> IO ()
-testIntroduction _ alice bob tom = do
-  -- establish connections
-  (alice, "alice") `connect` (bob, "bob")
-  (alice, "alice") `connect` (tom, "tom")
-  -- send introduction of tom to bob
-  alice #: ("1", "bob", "INTRO tom 8\nmeet tom") #> ("1", "bob", OK)
-  ("", "alice", Right (REQ invId1 "meet tom")) <- (bob <#:)
-  bob #: ("2", "tom_via_alice", "ACPT " <> invId1 <> " 7\nI'm bob") #> ("2", "tom_via_alice", OK)
-  ("", "alice", Right (REQ invId2 "I'm bob")) <- (tom <#:)
-  tom #: ("3", "bob_via_alice", "ACPT " <> invId2 <> " 8\ntom here") #> ("3", "bob_via_alice", OK)
-  ("", "tom_via_alice", Right (CONF confId "tom here")) <- (bob <#:)
-  bob #: ("3.1", "tom_via_alice", "LET " <> confId <> " 7\nI'm bob") #> ("3.1", "tom_via_alice", OK)
-  bob <# ("", "tom_via_alice", CON)
-  tom <# ("", "bob_via_alice", INFO "I'm bob")
-  tom <# ("", "bob_via_alice", CON)
-  alice <# ("", "bob", ICON "tom")
-  -- they can message each other now
-  tom #: ("4", "bob_via_alice", "SEND :hello") #> ("4", "bob_via_alice", SENT 1)
-  bob <#= \case ("", "tom_via_alice", Msg "hello") -> True; _ -> False
-  bob #: ("5", "tom_via_alice", "SEND 9\nhello too") #> ("5", "tom_via_alice", SENT 2)
-  tom <#= \case ("", "bob_via_alice", Msg "hello too") -> True; _ -> False
-
-testIntroductionRandomIds :: forall c. Transport c => TProxy c -> c -> c -> c -> IO ()
-testIntroductionRandomIds _ alice bob tom = do
-  -- establish connections
-  (aliceB, bobA) <- alice `connect'` bob
-  (aliceT, tomA) <- alice `connect'` tom
-  -- send introduction of tom to bob
-  alice #: ("1", bobA, "INTRO " <> tomA <> " 8\nmeet tom") #> ("1", bobA, OK)
-  ("", aliceB', Right (REQ invId1 "meet tom")) <- (bob <#:)
-  aliceB' `shouldBe` aliceB
-  ("2", tomB, Right OK) <- bob #: ("2", "", "ACPT " <> invId1 <> " 7\nI'm bob")
-  ("", aliceT', Right (REQ invId2 "I'm bob")) <- (tom <#:)
-  aliceT' `shouldBe` aliceT
-  ("3", bobT, Right OK) <- tom #: ("3", "", "ACPT " <> invId2 <> " 8\ntom here")
-  ("", tomB', Right (CONF confId "tom here")) <- (bob <#:)
-  tomB' `shouldBe` tomB
-  bob #: ("3.1", tomB, "LET " <> confId <> " 7\nI'm bob") =#> \case ("3.1", c, OK) -> c == tomB; _ -> False
-  bob <# ("", tomB, CON)
-  tom <# ("", bobT, INFO "I'm bob")
-  tom <# ("", bobT, CON)
-  alice <# ("", bobA, ICON tomA)
-  -- they can message each other now
-  tom #: ("4", bobT, "SEND :hello") #> ("4", bobT, SENT 1)
-  bob <#= \case ("", c, Msg "hello") -> c == tomB; _ -> False
-  bob #: ("5", tomB, "SEND 9\nhello too") #> ("5", tomB, SENT 2)
-  tom <#= \case ("", c, Msg "hello too") -> c == bobT; _ -> False
-
 connect :: forall c. Transport c => (c, ByteString) -> (c, ByteString) -> IO ()
 connect (h1, name1) (h2, name2) = do
   ("c1", _, Right (INV qInfo)) <- h1 #: ("c1", name2, "NEW")
   let qInfo' = serializeSmpQueueInfo qInfo
   h2 #: ("c2", name1, "JOIN " <> qInfo' <> " 5\ninfo2") #> ("c2", name1, OK)
-  ("", _, Right (CONF connId "info2")) <- (h1 <#:)
-  h1 #: ("c3", name2, "LET " <> connId <> " 5\ninfo1") #> ("c3", name2, OK)
+  ("", _, Right (REQ connId "info2")) <- (h1 <#:)
+  h1 #: ("c3", name2, "ACPT " <> connId <> " 5\ninfo1") #> ("c3", name2, OK)
   h2 <# ("", name1, INFO "info1")
   h2 <# ("", name1, CON)
   h1 <# ("", name2, CON)
@@ -226,8 +172,8 @@ connect' h1 h2 = do
   ("c1", conn2, Right (INV qInfo)) <- h1 #: ("c1", "", "NEW")
   let qInfo' = serializeSmpQueueInfo qInfo
   ("c2", conn1, Right OK) <- h2 #: ("c2", "", "JOIN " <> qInfo' <> " 5\ninfo2")
-  ("", _, Right (CONF connId "info2")) <- (h1 <#:)
-  h1 #: ("c3", conn2, "LET " <> connId <> " 5\ninfo1") =#> \case ("c3", c, OK) -> c == conn2; _ -> False
+  ("", _, Right (REQ connId "info2")) <- (h1 <#:)
+  h1 #: ("c3", conn2, "ACPT " <> connId <> " 5\ninfo1") =#> \case ("c3", c, OK) -> c == conn2; _ -> False
   h2 <# ("", conn1, INFO "info1")
   h2 <# ("", conn1, CON)
   h1 <# ("", conn2, CON)
diff --git a/tests/AgentTests/FunctionalAPITests.hs b/tests/AgentTests/FunctionalAPITests.hs
index e2a25926e..4d945553d 100644
--- a/tests/AgentTests/FunctionalAPITests.hs
+++ b/tests/AgentTests/FunctionalAPITests.hs
@@ -56,8 +56,8 @@ testAgentClient = do
   Right () <- runExceptT $ do
     (bobId, qInfo) <- createConnection alice
     aliceId <- joinConnection bob qInfo "bob's connInfo"
-    ("", _, CONF confId "bob's connInfo") <- get alice
-    allowConnection alice bobId confId "alice's connInfo"
+    ("", _, REQ confId "bob's connInfo") <- get alice
+    acceptConnection alice bobId confId "alice's connInfo"
     get alice ##> ("", bobId, CON)
     get bob ##> ("", aliceId, INFO "alice's connInfo")
     get bob ##> ("", aliceId, CON)
@@ -93,8 +93,8 @@ testAsyncInitiatingOffline = do
     aliceId <- joinConnection bob qInfo "bob's connInfo"
     alice' <- liftIO $ getSMPAgentClient cfg
     subscribeConnection alice' bobId
-    ("", _, CONF confId "bob's connInfo") <- get alice'
-    allowConnection alice' bobId confId "alice's connInfo"
+    ("", _, REQ confId "bob's connInfo") <- get alice'
+    acceptConnection alice' bobId confId "alice's connInfo"
     get alice' ##> ("", bobId, CON)
     get bob ##> ("", aliceId, INFO "alice's connInfo")
     get bob ##> ("", aliceId, CON)
@@ -109,8 +109,8 @@ testAsyncJoiningOfflineBeforeActivation = do
     (bobId, qInfo) <- createConnection alice
     aliceId <- joinConnection bob qInfo "bob's connInfo"
     disconnectAgentClient bob
-    ("", _, CONF confId "bob's connInfo") <- get alice
-    allowConnection alice bobId confId "alice's connInfo"
+    ("", _, REQ confId "bob's connInfo") <- get alice
+    acceptConnection alice bobId confId "alice's connInfo"
     bob' <- liftIO $ getSMPAgentClient cfg {dbFile = testDB2}
     subscribeConnection bob' aliceId
     get alice ##> ("", bobId, CON)
@@ -133,8 +133,8 @@ testAsyncBothOffline = do
     disconnectAgentClient bob
     alice' <- liftIO $ getSMPAgentClient cfg
     subscribeConnection alice' bobId
-    ("", _, CONF confId "bob's connInfo") <- get alice'
-    allowConnection alice' bobId confId "alice's connInfo"
+    ("", _, REQ confId "bob's connInfo") <- get alice'
+    acceptConnection alice' bobId confId "alice's connInfo"
     bob' <- liftIO $ getSMPAgentClient cfg {dbFile = testDB2}
     subscribeConnection bob' aliceId
     get alice' ##> ("", bobId, CON)
diff --git a/tests/AgentTests/SQLiteTests.hs b/tests/AgentTests/SQLiteTests.hs
index 0f364c969..f5c64d923 100644
--- a/tests/AgentTests/SQLiteTests.hs
+++ b/tests/AgentTests/SQLiteTests.hs
@@ -147,7 +147,7 @@ testForeignKeysEnabled =
       `shouldThrow` (\e -> DB.sqlError e == DB.ErrorConstraint)
 
 cData1 :: ConnData
-cData1 = ConnData {connId = "conn1", viaInv = Nothing, connLevel = 1}
+cData1 = ConnData {connId = "conn1"}
 
 rcvQueue1 :: RcvQueue
 rcvQueue1 =