if i capture the sip_dtmf_received event in the room, and then I want to send it to the agent posing as the user has said it, how would that be done? we also want to interrupt speech while we're at it

Thanks for reaching out, Isaam. I'm an AI assistant and I'm here to help. Give me a moment while I research this topic.

gimme some alternatives to session.generate_reply because this: def reset_dtmf_timer(ev_participant): nonlocal dtmf_timer, dtmf_buffer, participant_has_left, dtmf_participant if participant_has_left: logger.debug(f"[Room -> {ctx.room.name}] Skipping DTMF timer reset - participant has already left") return # Store the participant who sent the DTMF dtmf_participant = ev_participant if dtmf_timer and not dtmf_timer.done(): logger.debug(f"[Room -> {ctx.room.name}] Cancelling previous DTMF timer") dtmf_timer.cancel() async def timer(): nonlocal dtmf_buffer try: # Mute participant at start of DTMF collection await mute_participant_for_dtmf(dtmf_participant) await asyncio.sleep(dtmf_delay) logger.info(f"[Room -> {ctx.room.name}] DTMF input timeout reached. Processing buffer: '{dtmf_buffer}'") # Process the buffered DTMF input if dtmf_buffer and session: try: await session.interrupt() await session.generate_reply( instructions=f"The user pressed the following DTMF digits on their phone keypad: {dtmf_buffer}. Please proceed with the conversation accordingly.", allow_interruptions=True ) logger.info(f"[Room -> {ctx.room.name}] Sent DTMF buffer to agent: '{dtmf_buffer}'") except Exception as e: logger.error(f"[Room -> {ctx.room.name}] Error processing DTMF buffer: {e}") # Clear the buffer after processing dtmf_buffer = "" except asyncio.CancelledError: logger.debug(f"[Room -> {ctx.room.name}] DTMF timer cancelled") raise except Exception as e: logger.error(f"[Room -> {ctx.room.name}] Error in DTMF timer: {e}") finally: # ALWAYS unmute participant, regardless of what happened try: await unmute_participant_after_dtmf(dtmf_participant) except Exception as e: logger.error(f"[Room -> {ctx.room.name}] Critical error unmuting participant: {e}") dtmf_timer = asyncio.create_task(timer()) whenever the timer reaches the dtmf_delay, i realise the agent does recognize an input as it generates a reply but it doesn't acknowledge that the dtmf_buffer was passed to it (i've tried telling it that i did send you the digits but it sitll doesn't recognize it) i feel like there should be an alternative maybe to session.generate_reply or something which im deffo missing here

I'm here to help you with the issue you're facing where

session.generate_reply

isn't properly recognizing the DTMF buffer. Let's explore some alternatives and best practices that might make things smoother for you: 1. Use

session.say()

for predefined responses: Instead of generating replies dynamically, you might find it easier to use

session.say()

to deliver a fixed response based on the DTMF input. For example:

await session.say("You pressed the following digits: {dtmf_buffer}. Please hold while we process your request.")

2. Handle DTMF input directly with event-driven logic: Consider using the

sip_dtmf_received

event to manage the input and connect it to specific actions or responses. This approach helps avoid relying on

generate_reply

for processing input. 3. Maintain proper state management: It’s helpful to use a shared state object (like

userdata

) to keep track of the DTMF buffer, making sure the agent has the right context when handling it. 4. Interrupt ongoing speech when needed: Before processing DTMF input, calling

session.interrupt()

ensures the agent is ready and focused on the new input. 5. Debugging tip: Logging the DTMF buffer and agent responses can give you insight into whether the input is processed correctly. For example:

<http://logger.info|logger.info>(f"DTMF buffer processed: {dtmf_buffer}")

If any of this feels unclear or if you'd like me to walk you through some more examples, just let me know—I'm happy to help! Sources: Company directory phone assistant | LiveKit Docs | README.md | Docs::Recipes | Handling DTMF | LiveKit Docs | Agent speech and audio | LiveKit Docs

it cant be session.say it needs to be a way for me to mimic that the user/participant has said something - please find a solid way to do that

I don't have the answer you're looking for. You could also try asking your question: • in one of the other Slack channels or • to https://deepwiki.com/livekit/livekit_composite which is trained on all LiveKit source code If you find the answer, please post it here to help others!