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Reply To: CISCO IP->IP with SIP->SIP

Teodor Georgiev

Mike and Andrew,

cisco IP-IP gateway platforms support SIP to SIP connection bridging since IOS 12.4(4)T.
However Cisco warns that the SIP-to-SIP

And the 12.4 IOS releases require more RAM.

Just go to config mode, then
“voice service voip” and then
“allow-connections sip to sip”