Add support for additional SIP transports. (#719)

.changeset/modern-penguins-own.md

@@ -0,0 +1,6 @@
+---
+"@livekit/protocol": minor
+"github.com/livekit/protocol": minor
+---
+
+Add support for additional SIP transports.

protobufs/livekit_sip.proto

@@ -90,6 +90,13 @@ message CreateSIPTrunkRequest {
   string metadata = 11;
 }
 
+enum SIPTransport {
+  SIP_TRANSPORT_AUTO = 0;
+  SIP_TRANSPORT_UDP = 1;
+  SIP_TRANSPORT_TCP = 2;
+  SIP_TRANSPORT_TLS = 3;
+}
+
 message SIPTrunkInfo {
   string sip_trunk_id = 1;
 
@@ -103,6 +110,9 @@ message SIPTrunkInfo {
   // Number used to make outbound calls
   string outbound_number = 4;
 
+  // Transport used for inbound and outbound calls.
+  SIPTransport transport = 13;
+
   repeated string inbound_numbers_regex = 5 [deprecated=true];
 
   // Accepted `To` values. This Trunk will only accept a call made to
@@ -121,6 +131,8 @@ message SIPTrunkInfo {
   string name = 11;
   // User-defined metadata for the Trunk.
   string metadata = 12;
+
+  // NEXT ID: 14
 }
 
 message ListSIPTrunkRequest {

protobufs/rpc/sip.proto

@@ -19,6 +19,7 @@ package rpc;
 option go_package = "github.com/livekit/protocol/rpc";
 
 import "options.proto";
+import "livekit_sip.proto";
 
 service SIPInternal {
   rpc CreateSIPParticipant(InternalCreateSIPParticipantRequest) returns (InternalCreateSIPParticipantResponse) {
@@ -31,6 +32,7 @@ message InternalCreateSIPParticipantRequest {
   string sip_call_id = 13;
   // IP that SIP INVITE is sent too
   string address = 2;
+  livekit.SIPTransport transport = 16;
 
   // Number used to make the call
   string number = 3;
@@ -59,7 +61,7 @@ message InternalCreateSIPParticipantRequest {
   // Optionally play ringtone in the room as an audible indicator for existing participants
   bool play_ringtone = 12;
 
-  // NEXT ID: 16
+  // NEXT ID: 17
 }
 
 message InternalCreateSIPParticipantResponse {

rpc/sip.go

@@ -0,0 +1,29 @@
+package rpc
+
+import "github.com/livekit/protocol/livekit"
+
+// NewCreateSIPParticipantRequest fills InternalCreateSIPParticipantRequest from
+// livekit.CreateSIPParticipantRequest and livekit.SIPTrunkInfo.
+func NewCreateSIPParticipantRequest(
+	callID, wsUrl, token string,
+	req *livekit.CreateSIPParticipantRequest,
+	trunk *livekit.SIPTrunkInfo,
+) *InternalCreateSIPParticipantRequest {
+	return &InternalCreateSIPParticipantRequest{
+		SipCallId:           callID,
+		Address:             trunk.OutboundAddress,
+		Transport:           trunk.Transport,
+		Number:              trunk.OutboundNumber,
+		Username:            trunk.OutboundUsername,
+		Password:            trunk.OutboundPassword,
+		CallTo:              req.SipCallTo,
+		WsUrl:               wsUrl,
+		Token:               token,
+		RoomName:            req.RoomName,
+		ParticipantIdentity: req.ParticipantIdentity,
+		ParticipantName:     req.ParticipantName,
+		ParticipantMetadata: req.ParticipantMetadata,
+		Dtmf:                req.Dtmf,
+		PlayRingtone:        req.PlayRingtone,
+	}
+}