Skip to content

feat(warm-transfer): add sip_number parameter for outbound caller ID #4216

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
Hormold merged 1 commit into from
Dec 11, 2025
Merged

feat(warm-transfer): add sip_number parameter for outbound caller ID #4216

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 2 additions & 0 deletions examples/warm-transfer/warm_transfer.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,7 @@
# ensure the following variables/env vars are set
SIP_TRUNK_ID = os.getenv("LIVEKIT_SIP_OUTBOUND_TRUNK") # "ST_abcxyz"
SUPERVISOR_PHONE_NUMBER = os.getenv("LIVEKIT_SUPERVISOR_PHONE_NUMBER") # "+12003004000"
SIP_NUMBER = os.getenv("LIVEKIT_SIP_NUMBER") # "+15005006000" - caller ID shown to supervisor


class SupportAgent(Agent):
Expand Down Expand Up @@ -60,6 +61,7 @@ async def transfer_to_human(self) -> None:
result = await WarmTransferTask(
target_phone_number=SUPERVISOR_PHONE_NUMBER,
sip_trunk_id=SIP_TRUNK_ID,
sip_number=SIP_NUMBER,
chat_ctx=self.chat_ctx,
# add extra instructions for summarization
# you can also customize the entire instructions by overriding the `get_instructions` method
Expand Down
6 changes: 6 additions & 0 deletions livekit-agents/livekit/agents/beta/workflows/warm_transfer.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -70,6 +70,7 @@ def __init__(
*,
hold_audio: NotGivenOr[AudioSource | AudioConfig | list[AudioConfig] | None] = NOT_GIVEN,
sip_trunk_id: NotGivenOr[str] = NOT_GIVEN,
sip_number: NotGivenOr[str] = NOT_GIVEN,
extra_instructions: str = "",
chat_ctx: NotGivenOr[llm.ChatContext] = NOT_GIVEN,
turn_detection: NotGivenOr[TurnDetectionMode | None] = NOT_GIVEN,
Expand Down Expand Up @@ -108,6 +109,10 @@ def __init__(
"`LIVEKIT_SIP_OUTBOUND_TRUNK` environment variable or `sip_trunk_id` argument must be set"
)

self._sip_number = (
sip_number if is_given(sip_number) else os.getenv("LIVEKIT_SIP_NUMBER", "")
)

# background audio and io
self._background_audio = BackgroundAudioPlayer()
self._hold_audio_handle: PlayHandle | None = None
Expand Down Expand Up @@ -302,6 +307,7 @@ async def _dial_human_agent(self) -> AgentSession:
room_name=human_agent_room_name,
participant_identity=self._human_agent_identity,
wait_until_answered=True,
sip_number=self._sip_number or None,
)
)

Expand Down
Loading