Good day all.

I’ve recently installed freeswitch in our office and in general everybody is happy.

The only disappointing thing – is attended transfer.

I’ve tried to make it working on Cisco7960 and on Grandstream GXP2000 – but with no luck. Could please, anybody respond, who successfully makes attended transfer using bypass mode?

In sip profile I use following options:

<param name="media-option" value="resume-media-on-hold"/>

<param name="media-option" value="bypass-media-after-att-xfer"/>

Scenario is the simplest one: A calls B, B transfers to C (with attended transfer – like putting A on hold, making outcall to C, bridging two calls together).

What I observe on Cisco phone – is following:

1. A calls B. B answers, puts A on hold and calls C. C answers and talks to B. Up to this time – everything is fine.

2. B presses ‘transfer’, in order to bridge two calls together. But, instead, C hangs up, A stays on hold and B looks like he just put A on hold. If B right now presses hold button – he will appear in dialog with A again.

Did anybody observe such behavior? What could be the advice in such situation?

Thank you in advance,

Siarhei.