SIP Design Recommendation

Unanswered Question
Apr 26th, 2008

If we plan to deploy Cisco IP Phones with sip firmware, run a sip trunk from UCM 6.1 to Cisco Gateway and have a Sip trunk up to sip provider (for PSTN) is there any reason we need to purchase the IP2IP gw license? I.e. with just standard sp services can we run SIP all the way through.


I have this problem too.
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