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98 lines
3.3 KiB
Python
98 lines
3.3 KiB
Python
import json
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import logging
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import os
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from pathlib import Path
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from dotenv import load_dotenv
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from livekit import api
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from livekit.agents import (
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Agent,
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AgentSession,
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ChatContext,
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JobContext,
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WorkerOptions,
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cli,
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)
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from livekit.plugins import deepgram, openai, silero
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from livekit.plugins.turn_detector.multilingual import MultilingualModel
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load_dotenv(os.path.join(os.path.dirname(__file__), "..", "..", ".env"))
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logger = logging.getLogger("mcp-agent")
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load_dotenv(dotenv_path=Path(__file__).parent.parent / ".env")
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class MyAgent(Agent):
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def __init__(self, chat_ctx: ChatContext) -> None:
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super().__init__(
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instructions=(
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"You can have phone calls. The interface is voice-based: "
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"accept spoken user queries and respond with synthesized speech."
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),
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chat_ctx=chat_ctx,
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)
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async def on_enter(self):
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self.session.generate_reply()
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async def entrypoint(ctx: JobContext):
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await ctx.connect()
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# If a phone number was provided, then place an outbound call
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# By having a condition like this, you can use the same agent for inbound/outbound telephony
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# as well as web/mobile/etc.
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dial_info = json.loads(ctx.job.metadata)
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phone_number = dial_info["phone_number"]
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# The participant's identity can be anything you want, but this example uses the phone number itself
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sip_participant_identity = phone_number
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if phone_number is not None:
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# The outbound call will be placed after this method is executed
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try:
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await ctx.api.sip.create_sip_participant(
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api.CreateSIPParticipantRequest(
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# This ensures the participant joins the correct room
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room_name=ctx.room.name,
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# This is the outbound trunk ID to use (i.e. which phone number the call will come from)
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# You can get this from LiveKit CLI with `lk sip outbound list`
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sip_trunk_id=os.environ.get("TWILIO_SIP_TRUNK_ID"),
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# The outbound phone number to dial and identity to use
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sip_call_to=phone_number,
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participant_identity=sip_participant_identity,
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# This will wait until the call is answered before returning
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wait_until_answered=True,
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)
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)
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print("call picked up successfully")
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except api.TwirpError as e:
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print(
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f"error creating SIP participant: {e.message}, "
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f"SIP status: {e.metadata.get('sip_status_code')} "
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f"{e.metadata.get('sip_status')}"
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)
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ctx.shutdown()
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session = AgentSession(
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vad=silero.VAD.load(),
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stt=deepgram.STT(model="nova-3", language="multi"),
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llm=openai.LLM(model="gpt-4o-mini"),
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tts=openai.TTS(voice="ash"),
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turn_detection=MultilingualModel(),
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)
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await session.start(agent=MyAgent(chat_ctx=session._chat_ctx), room=ctx.room)
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if phone_number is None:
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await session.generate_reply(
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instructions="Greet the user and offer your assistance."
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)
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if __name__ == "__main__":
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cli.run_app(
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WorkerOptions(entrypoint_fnc=entrypoint, agent_name="my-telephony-agent")
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)
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