how to detect for outbound dial using create sip p...
# ask-ain
nice-fish-21757
07/31/2025, 2:35 AMhow to detect for outbound dial using create sip participant in the livekit agents, the user has picked up the phone call? right now I can’t detect when the user has picked up the phone
t
tall-airline-16756
07/31/2025, 2:35 AMThanks for reaching out, Tareq. I'm an AI assistant and I'm here to help. Give me a moment while I research this topic.
tall-airline-16756
07/31/2025, 2:36 AMTo detect when a user has picked up the phone during an outbound dial using
create_sip_participantwait_until_answeredwait_until_answered=Truecreate_sip_participant Copy code
try:
await ctx.api.sip.create_sip_participant(api.CreateSIPParticipantRequest(
room_name=ctx.room.name,
sip_trunk_id='ST_xxxx',
sip_call_to=phone_number,
participant_identity=sip_participant_identity,
# This will wait until the call is answered before returning
wait_until_answered=True,
))
print("Call picked up successfully")
except api.TwirpError as e:
print(f"Error creating SIP participant: {e.message}")sip.callStatus Copy code
# Create SIP participant (returns immediately)
await ctx.api.sip.create_sip_participant(api.CreateSIPParticipantRequest(
room_name=ctx.room.name,
sip_trunk_id=outbound_trunk_id,
sip_call_to=phone_number,
participant_identity=user_identity,
))
# Wait for participant to be created
participant = await ctx.wait_for_participant(identity=user_identity)
# Monitor dialing status
start_time = perf_counter()
while perf_counter() - start_time < 30:
call_status = participant.attributes.get("sip.callStatus")
if call_status == "active":
<http://logger.info|logger.info>("User has picked up")
return
elif call_status == "automation":
# DTMF dialing in progress
pass
elif call_status == "hangup":
<http://logger.info|logger.info>("User hung up, exiting job")
break
await asyncio.sleep(0.1)
<http://logger.info|logger.info>("Session timed out, exiting job")wait_until_answered=True