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T26P - Presence message on speakerphone - disable
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jolouis Offline

Posts: 339
Joined: Oct 2013
Reputation: 6
Post: #4
RE: T26P - Presence message on speakerphone - disable
Well I'm not sure exactly what SIP header 3CX is using to trigger the auto answer, but if Craig says his T48 is not doing it and your older T26 is there's a good chance they're using the traditional "intercom" parameter in the SIP packet. (Full list of packet options that can trigger an auto-answer on your phone are here:

You should be able to disable this by logging into your phone and going to
Features -> Intercom -> Accept Intercom.

Try setting that to false, and see if it makes a difference. My guess is that maybe on the T48 or somewhere in Craig's environment that option has been provisioned to off, and that's why his phone is not reacting the same way as yours?

Worth a shot anyway. If that doesn't help, I would suggest doing a pcap on the phone to capture the packets that trigger the activation message, and then you can figure out exactly what SIP parameter is being used to trigger the auto answer/speakerphone.
04-07-2017 01:19 PM
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RE: T26P - Presence message on speakerphone - disable - jolouis - 04-07-2017 01:19 PM

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