Cisco Call Manager and support for Session Initiation Protocol (SIP)
February 28, 2006 at 2:03 PM
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In march, Cisco will introduce the next release of Call Manager (version 5.0) at the VoiceCon show. Lots of changes are to be expected, including support for Linux in addition to Windows Server, and finally support for SIP clients.
Call Manager is the only major IP PBX to not offer SIP client support. Cisco has offered SIP trunking and offers a SIP proxy server for the carrier market, but has no such offering for the enterprise.
Cisco's SIP adoption may well address at least some of those problems. With SIP support, clients will be able to carry rich presence, reflecting various states and not just whether they’re online. Mobility will also be enhanced as next generation mobile services use IM, which is SIP based.
Does that mean end to SIP proxy (gateway) devices between Live Communication Server 2005 SP1 (LCS2005 SP1) and Cisco Call Manager (CCM)?