Forum Discussion
A blank is heard during the playback of an audio message when escalating a call to a conference
Hi,
I'm having trouble again with a simple scenario involving cloud communication. I'm still using directly the GRAPH API, without SDK.
This thread references this other one here.
A PSTN caller calls a bot, that answers then escalates the call to a conference by inviting a user, or several users from its tenant. While escalating to a conference, the bot plays an audio file for the caller, using the playPrompt GRAPH API route.
This works well, except that one hear a blank during the playback, at the exact moment the call is escalating to a conference. I suppose it is when escalating cause it happens only when the first user is invited, not for the others.
Regards,
David CHOLLET
- This is by design.
From P2P to escalate to conference will trigger a media retarget.
P2P media will be replaced by server side mixer.
This media retarget may take 1-2 secs which will cause a gap or "blank".
After the first invite, it becomes group call. So inviting new participants will not cause any gap again, since server side mixer keeps serving the call.
Thanks,
Nivedipa
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Nivedipa-MSFTMicrosoft
Mad_hatter - Could you please share which sample you are referring for this?Nivedipa-MSFT- I do not refer to any sample. I just do the following
- A public number (the caller) calls the bot public number.
- The bot answers the call using this
- The bot plays an audio message using this
- The bot invite a new participant escalating the call to a conference (or a group call) using this
Result: the audio message is played fine, but the caller hears a blank during the playback when the new user participant receives the invitation to the conference.
If you invite other participants to this group call (step 4/ again and again), no more "blank" will be heard from the playback.
Regards,
David CHOLLET
- Nivedipa-MSFTMad_hatter - Could you please share how you are calling from public number to bot public number? What actually you have used for it?
