diff --git a/go.mod b/go.mod
index 48e0d648f..ed55a2761 100644
--- a/go.mod
+++ b/go.mod
@@ -23,7 +23,7 @@ require (
 	github.com/jxskiss/base62 v1.1.0
 	github.com/livekit/mageutil v0.0.0-20250511045019-0f1ff63f7731
 	github.com/livekit/mediatransportutil v0.0.0-20250922175932-f537f0880397
-	github.com/livekit/protocol v1.42.1-0.20251006173230-a7bc52ad9724
+	github.com/livekit/protocol v1.42.1-0.20251012093153-c84cf2c2802b
 	github.com/livekit/psrpc v0.7.0
 	github.com/mackerelio/go-osstat v0.2.6
 	github.com/magefile/mage v1.15.0
diff --git a/go.sum b/go.sum
index 15f03b079..088bfab48 100644
--- a/go.sum
+++ b/go.sum
@@ -171,8 +171,8 @@ 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 v0.0.0-20250922175932-f537f0880397 h1:Z7j2mY+bvG05UC80MpnJkitlJju8sSDWsr0Bb4dPceo=
 github.com/livekit/mediatransportutil v0.0.0-20250922175932-f537f0880397/go.mod h1:mSNtYzSf6iY9xM3UX42VEI+STHvMgHmrYzEHPcdhB8A=
-github.com/livekit/protocol v1.42.1-0.20251006173230-a7bc52ad9724 h1:oz2RQahwZ8LPaGX+2RzAR08s+zqJJSep+OCvWuD90I4=
-github.com/livekit/protocol v1.42.1-0.20251006173230-a7bc52ad9724/go.mod h1:vhMS30QoEyH2p34vi6X1eWkC4EMV72ZGZwQb74ajY7A=
+github.com/livekit/protocol v1.42.1-0.20251012093153-c84cf2c2802b h1:yy10iTBHZV+fECKlAolZyrc/lBBf1a7mwipNOR9Dc7A=
+github.com/livekit/protocol v1.42.1-0.20251012093153-c84cf2c2802b/go.mod h1:vhMS30QoEyH2p34vi6X1eWkC4EMV72ZGZwQb74ajY7A=
 github.com/livekit/psrpc v0.7.0 h1:rtfqfjYN06WJYloE/S0nmkJ/Y04x4pxLQLe8kQ4FVHU=
 github.com/livekit/psrpc v0.7.0/go.mod h1:AuDC5uOoEjQJEc69v4Li3t77Ocz0e0NdjQEuFfO+vfk=
 github.com/mackerelio/go-osstat v0.2.6 h1:gs4U8BZeS1tjrL08tt5VUliVvSWP26Ai2Ob8Lr7f2i0=
diff --git a/pkg/service/ioservice_sip.go b/pkg/service/ioservice_sip.go
index 5892a4c47..0140466f2 100644
--- a/pkg/service/ioservice_sip.go
+++ b/pkg/service/ioservice_sip.go
@@ -149,9 +149,18 @@ func (s *IOInfoService) GetSIPTrunkAuthentication(ctx context.Context, req *rpc.
 		return &rpc.GetSIPTrunkAuthenticationResponse{}, nil
 	}
 	log.Debugw("SIP trunk matched for auth", "sipTrunk", trunk.SipTrunkId)
+
+	// Create provider info for the trunk
+	providerInfo := &livekit.ProviderInfo{
+		Id:   trunk.SipTrunkId,
+		Name: trunk.Name,
+		Type: livekit.ProviderType_PROVIDER_TYPE_EXTERNAL, // External trunk
+	}
+
 	return &rpc.GetSIPTrunkAuthenticationResponse{
-		SipTrunkId: trunk.SipTrunkId,
-		Username:   trunk.AuthUsername,
-		Password:   trunk.AuthPassword,
+		SipTrunkId:   trunk.SipTrunkId,
+		Username:     trunk.AuthUsername,
+		Password:     trunk.AuthPassword,
+		ProviderInfo: providerInfo,
 	}, nil
 }