Forum Discussion
Microsoft Teams won't send dial pad inputs when navigating a phone tree during a conference call
jcjchavez(and a message to my future self when I get annoyed by this again)
So I realised that there are two dial pads. The one in the main Teams window doesn't send tones.
But if you can navigate to the call itself there is another dial pad at the top. This does send tones.
🙂
JULY 2023 UPDATE FROM MY FUTURE SELF:
They Keypad option in Teams sends tones on the call. To add another participant, click on People and then dial another number.
https://support.microsoft.com/en-us/topic/avmcu-does-not-support-dtmf-in-lync-server-or-skype-for-business-server-f1702fe3-728f-158d-1ca5-f80ca04e15a4
SIP mention only marginally relevant here. SFB/Lync utilized the Centralized Conference Control Protocol (3CP) for management of conferences, and that protocol got translated to specific SIP standards for integration with telephony. Info:
https://learn.microsoft.com/en-us/openspecs/office_protocols/ms-confbas/6cb739fe-3a84-4266-8d52-0af777f6f1fa?redirectedfrom=MSDN
While Teams has shifted to a REST-based communication protocol that is closely aligned with Skype Consumer, the AVMCU functionality is still largely structured off the prior SFB AVMCU capabilities (hence the issue still being present). Either way, we still get SIP transport for telephony integration by way of Direct Routing, Calling Plans, and Audio Conf Dial-In/Out.
Now...all that being said, I am now noticing the URL about Call Merge has some limitations listed at the bottom which I did not notice prior. One notable limitation: meetings. That is an incredibly frustrating and unfortunate limitation. Hopefully they close the gap on that.
maybe an app that plays tones in the "microphone" ?? I know its a little dumb, but if microsoft can't make a dial pad appear cant we have one.
perhaps even a app added in teams 😛
Im thinking the same thing. I found a React App that is a DTMF tone generator with dial pad buttons. I can put this into my own MS Teams App, but the audio currently goes to the users default sound device. Does anyone know how to send audio from a Teams app out to all participants? Without using a virtual audio device in windows piped to the microphone?
