diff --git a/go.mod b/go.mod
index d03c4ba85..070c2da52 100644
--- a/go.mod
+++ b/go.mod
@@ -23,8 +23,8 @@ require (
 	github.com/jxskiss/base62 v1.1.0
 	github.com/livekit/mageutil v0.0.0-20250511045019-0f1ff63f7731
 	github.com/livekit/mediatransportutil v0.0.0-20250519131108-fb90f5acfded
-	github.com/livekit/protocol v1.39.4-0.20250724043230-34c7a0eb632f
-	github.com/livekit/psrpc v0.6.1-0.20250511053145-465289d72c3c
+	github.com/livekit/protocol v1.39.4-0.20250724172257-afef3ef967cc
+	github.com/livekit/psrpc v0.6.1-0.20250724161801-262a822e7cd7
 	github.com/mackerelio/go-osstat v0.2.5
 	github.com/magefile/mage v1.15.0
 	github.com/maxbrunsfeld/counterfeiter/v6 v6.11.2
diff --git a/go.sum b/go.sum
index 1f7748527..69e5e1af9 100644
--- a/go.sum
+++ b/go.sum
@@ -167,10 +167,10 @@ github.com/livekit/mageutil v0.0.0-20250511045019-0f1ff63f7731 h1:9x+U2HGLrSw5AT
 github.com/livekit/mageutil v0.0.0-20250511045019-0f1ff63f7731/go.mod h1:Rs3MhFwutWhGwmY1VQsygw28z5bWcnEYmS1OG9OxjOQ=
 github.com/livekit/mediatransportutil v0.0.0-20250519131108-fb90f5acfded h1:ylZPdnlX1RW9Z15SD4mp87vT2D2shsk0hpLJwSPcq3g=
 github.com/livekit/mediatransportutil v0.0.0-20250519131108-fb90f5acfded/go.mod h1:mSNtYzSf6iY9xM3UX42VEI+STHvMgHmrYzEHPcdhB8A=
-github.com/livekit/protocol v1.39.4-0.20250724043230-34c7a0eb632f h1:kdn/KF/2IRCQCXZWvm9RxKN4u79olHRZKo2JDxr/kPw=
-github.com/livekit/protocol v1.39.4-0.20250724043230-34c7a0eb632f/go.mod h1:YlgUxAegtU8jZ0tVXoIV/4fHeHqqLvS+6JnPKDbpFPU=
-github.com/livekit/psrpc v0.6.1-0.20250511053145-465289d72c3c h1:WwEr0YBejYbKzk8LSaO9h8h0G9MnE7shyDu8yXQWmEc=
-github.com/livekit/psrpc v0.6.1-0.20250511053145-465289d72c3c/go.mod h1:kmD+AZPkWu0MaXIMv57jhNlbiSZZ/Jx4bzlxBDVmJes=
+github.com/livekit/protocol v1.39.4-0.20250724172257-afef3ef967cc h1:kF9ju/WEqtzMhI3P9hCUcgoh1mFEuq7DuWPkji6iq/M=
+github.com/livekit/protocol v1.39.4-0.20250724172257-afef3ef967cc/go.mod h1:YlgUxAegtU8jZ0tVXoIV/4fHeHqqLvS+6JnPKDbpFPU=
+github.com/livekit/psrpc v0.6.1-0.20250724161801-262a822e7cd7 h1:x50axcjXwfwnII7sMhJPyZ6f5LpPapZtsp75KJX8nIQ=
+github.com/livekit/psrpc v0.6.1-0.20250724161801-262a822e7cd7/go.mod h1:kmD+AZPkWu0MaXIMv57jhNlbiSZZ/Jx4bzlxBDVmJes=
 github.com/mackerelio/go-osstat v0.2.5 h1:+MqTbZUhoIt4m8qzkVoXUJg1EuifwlAJSk4Yl2GXh+o=
 github.com/mackerelio/go-osstat v0.2.5/go.mod h1:atxwWF+POUZcdtR1wnsUcQxTytoHG4uhl2AKKzrOajY=
 github.com/magefile/mage v1.15.0 h1:BvGheCMAsG3bWUDbZ8AyXXpCNwU9u5CB6sM+HNb9HYg=
diff --git a/pkg/rtc/signalling/signallingv2.go b/pkg/rtc/signalling/signallingv2.go
index 9df2b5b3d..393abed9b 100644
--- a/pkg/rtc/signalling/signallingv2.go
+++ b/pkg/rtc/signalling/signallingv2.go
@@ -32,13 +32,13 @@ type signallingv2 struct {
 
 	params Signallingv2Params
 
-	signalCache *protosignalling.Signalv2Cache
+	signalCache *protosignalling.Signalv2ServerMessageCache
 }
 
 func NewSignallingv2(params Signallingv2Params) ParticipantSignalling {
 	return &signallingv2{
 		params: params,
-		signalCache: protosignalling.NewSignalv2Cache(protosignalling.Signalv2CacheParams{
+		signalCache: protosignalling.NewSignalv2ServerMessageCache(protosignalling.SignalCacheParams{
 			Logger: params.Logger,
 		}),
 	}
diff --git a/pkg/service/roommanager_service.go b/pkg/service/roommanager_service.go
index 1cd0edd1b..422e875ff 100644
--- a/pkg/service/roommanager_service.go
+++ b/pkg/service/roommanager_service.go
@@ -224,3 +224,24 @@ func (s signalv2ParticipantService) RelaySignalv2Participant(ctx context.Context
 		WireMessage: wireMessage,
 	}, nil
 }
+
+func (s signalv2ParticipantService) RelaySignalv2ParticipantDeleteSession(
+	ctx context.Context,
+	req *rpc.RelaySignalv2ParticipantDeleteSessionRequest,
+) (*emptypb.Empty, error) {
+	room := s.RoomManager.GetRoom(ctx, livekit.RoomName(req.Room))
+	if room == nil {
+		return nil, ErrRoomNotFound
+	}
+
+	lp := room.GetParticipantByID(livekit.ParticipantID(req.ParticipantId))
+	if lp != nil {
+		room.RemoveParticipant(
+			lp.Identity(),
+			lp.ID(),
+			types.ParticipantCloseReasonClientRequestLeave,
+		)
+	}
+
+	return &emptypb.Empty{}, nil
+}
diff --git a/pkg/service/rtcv2service.go b/pkg/service/rtcv2service.go
index bb03cd056..99bad3774 100644
--- a/pkg/service/rtcv2service.go
+++ b/pkg/service/rtcv2service.go
@@ -75,6 +75,7 @@ func (s *RTCv2Service) SetupRoutes(mux *http.ServeMux) {
 	mux.HandleFunc("POST "+cRTCv2Path, s.handlePost)
 	mux.HandleFunc("GET "+cRTCv2Path, s.validate)
 	mux.HandleFunc("PATCH "+cRTCv2ParticipantIDPath, s.handleParticipantPatch)
+	mux.HandleFunc("DELETE "+cRTCv2ParticipantIDPath, s.handleParticipantDelete)
 }
 
 func (s *RTCv2Service) validateInternal(
@@ -293,6 +294,59 @@ func (s *RTCv2Service) handleParticipantPatch(w http.ResponseWriter, r *http.Req
 	w.WriteHeader(http.StatusOK)
 }
 
+func (s *RTCv2Service) handleParticipantDelete(w http.ResponseWriter, r *http.Request) {
+	claims := GetGrants(r.Context())
+	if claims == nil || claims.Video == nil {
+		HandleErrorJson(w, r, http.StatusUnauthorized, rtc.ErrPermissionDenied)
+		return
+	}
+
+	roomName, err := EnsureJoinPermission(r.Context())
+	if err != nil {
+		HandleErrorJson(w, r, http.StatusUnauthorized, err)
+		return
+	}
+	if roomName == "" {
+		HandleErrorJson(w, r, http.StatusUnauthorized, ErrNoRoomName)
+		return
+	}
+
+	participantIdentity := livekit.ParticipantIdentity(claims.Identity)
+	if participantIdentity == "" {
+		HandleErrorJson(w, r, http.StatusUnauthorized, ErrIdentityEmpty)
+		return
+	}
+
+	pID := livekit.ParticipantID(r.PathValue("participant_id"))
+	if pID == "" {
+		HandleErrorJson(w, r, http.StatusBadRequest, ErrParticipantSidEmpty)
+		return
+	}
+
+	_, err = s.signalv2ParticipantClient.RelaySignalv2ParticipantDeleteSession(
+		r.Context(),
+		s.topicFormatter.ParticipantTopic(r.Context(), roomName, participantIdentity),
+		&rpc.RelaySignalv2ParticipantDeleteSessionRequest{
+			Room:                string(roomName),
+			ParticipantIdentity: string(participantIdentity),
+			ParticipantId:       string(pID),
+		},
+	)
+	if err != nil {
+		HandleErrorJson(w, r, http.StatusBadRequest, err)
+		return
+	}
+
+	logger.Debugw(
+		"participant deleted",
+		"room", roomName,
+		"participant", participantIdentity,
+		"pID", pID,
+	)
+
+	w.WriteHeader(http.StatusOK)
+}
+
 // ---------------------------------------
 
 func getWireMessage(r *http.Request) (*livekit.Signalv2WireMessage, error) {