[Asterisk-Users] Swissvoice ip10: No 3-way-calling! (MGCP)

[Philipp von Klitzing]

taken from bug 881 (now resolved) :-(

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 markster - 05-19-2004 09:21 CDT 
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it turns out the 10S cannot conference on the device.  From Jean-Francois
at Swissvoice:

Hi Mark,
IP10S have not the capabilities to mix by itself 2 RTP flows, that why it
refuses the conference mode. Most often, with the different partner we
have, the conference capability is managed by a MCU on the network, then
on the phone side, it's transparent.

Regards,
Jean-Francois

If you want you can open a feature request that we be able to use a zap
conference to implement three-way calling when unavailable on the end
device, but that's a pretty good sized development project.