feat: add outbound trunk config for create_sip_participant. (#523)

Author: cloudwebrtc

livekit-api/livekit/api/sip_service.py

@@ -6,6 +6,7 @@
 
 from livekit.protocol.models import ListUpdate
 from livekit.protocol.sip import (
+    SIPOutboundConfig,
     SIPTrunkInfo,
     CreateSIPInboundTrunkRequest,
     UpdateSIPInboundTrunkRequest,
@@ -755,12 +756,16 @@ async def create_sip_participant(
         create: CreateSIPParticipantRequest,
         *,
         timeout: Optional[float] = None,
+        trunk_id: Optional[str] = None,
+        outbound_trunk_config: Optional[SIPOutboundConfig] = None,
     ) -> SIPParticipantInfo:
         """Create a new SIP participant.
 
         Args:
             create: Request containing participant details
             timeout: Optional request timeout in seconds
+            trunk_id: Optional SIP trunk ID to use for the participant
+            outbound_trunk_config: Optional outbound trunk configuration for the participant
 
         Returns:
             Created SIP participant
@@ -781,6 +786,12 @@ async def create_sip_participant(
             ):
                 client_timeout = aiohttp.ClientTimeout(total=20)
 
+        if trunk_id:
+            create.sip_trunk_id = trunk_id
+
+        if outbound_trunk_config:
+            create.trunk = outbound_trunk_config
+
         return await self._client.request(
             SVC,
             "CreateSIPParticipant",