IP phone works behind the NAT

Unanswered Question
Feb 3rd, 2007

IS is possible that i can use more then one ip phone behind the NAT router, if it works then someone can tell me that how the communication works.

I have this problem too.
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Paolo Bevilacqua Sat, 02/03/2007 - 13:16

It should work depending on the NAT device, if it supports the protocol involved, SCCP or SIP. It will translate addresses for the signalling protocol, and create dynamic translations for RTP. Cisco devices do that correctly or at least can be diagnosed if they don't.

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