[Asterisk-Users] polycom phone IP 500/600 conference feature

[Andrei (MPI)]

Richard,

Could  you describe: ip address/network of each phone and network 
infrastructure that is in the middle of this communication.

Andrei

ps. I'm using Polycoms everyday, have not seen this effect yet.

Richard wrote:

>Hi,
>
>Has anyone used polycom phone IP500/600's conference feature? I ran into
>some issues. 
>
>Polycom is not behind NAT.
>Polycom calls pstn number A, (gets two way voice), 
>presses conference, (A is put on hold), 
>calls pstn number B, (gets two way voice), 
>presses conference again, suppose to have all three parties in the call,
>polycom and B have two way voice, but polycom doesn't have two way voice
>with A.
>
>Has anyone experienced it before? I did some trace. It looks like that
>polycom phone stops sending rtp packets to the first call, i.e. A.
>
>Thanks,
>Richard
>
>
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