VoIP Proxy

Unanswered Question
Jul 20th, 2009

SIP_PHONE-1<--->Cisco<--->SIP_PHONE-2

I have IOS c2800nm-ipvoice-mz.124-15.T1. How I can to transparently transmit a SIP connection through this cisco, without of changing of SIP_PHONE-1 address to the adress of Cisco ?

I have this problem too.
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ldardon Tue, 07/28/2009 - 14:24

• Session Initiation Protocol (SIP) v2 (RFC 3261, 3262, 3263, 3264)

• SIP proxy redundancy - dynamic via DNS SRV, A records deregistration with primary SIP proxy server

• SIP support in network address translation (NAT) networks (including Serial Tunnel [STUN])

• Highly secure (encrypted) calling via prestandard implementation of Secure RTP

• Codec name assignment

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