If I call a cell phone and he takes a call waiting beep, I hear my own MoH. That isn’t so bad, except in a conference call, if any user takes a “click,” the server’s MoH plays to the entire conference.
How do I stop that?
It’s working as designed. The problem is common on many conferencing platforms and has been an issue for many, many years.
Your choices are pretty radical.
- No call waiting.
- No putting people on hold.
- No MOH.
Of the three, I’d say #2 is preferable. Simply remind everyone that putting a conference on hold plays your MOH back to the conference, disrupting it.
Some conference servers allow you to mute specific extensions (Webex, for example) and some allow you to kick a participant if they’re being “like that”.
The cell phone person has a call waiting call. Not the person on the PBX. This is not normal at all.
The PBX has no way to know that a remote called party has used a hold feature or anything else.
Is the call coming to the cellphone through a cell carrier or does the user have a SIP client installed on the cell phone?
If you look at the signalling when this happens, you will probably see a SIP INVITE coming from the trunk channel to the PBX when the far end goes on hold. If so, you need to config the trunk to disable reinvites.
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I believe I may have a similar issue I’ve experience with some outside calls. I’ll receive a call from someone, and when they put me on hold, I’ll hear our own hold music playing. From what Lorne posted, that makes sense if the Trunk is receiving a SIP invite causing that to happen.
Is there a specific option I would set on a PJSIP to disable that? By default, I only see T as the outbound trunk options. Is this potentially the issue?
Might be a totally different issue, but figured I would ask.
Chris
If you look at the signalling when this happens, you will probably see a SIP INVITE coming from the trunk channel to the PBX when the far end goes on hold. If so, you need to config the trunk to disable reinvites.
Yes, I think that makes sense!
@christrati - I don’t think T affects “hold”. A reinvite informs Asterisk that there is only one active channel in the bridge so it plays MoH.
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