Today as expected, Cisco announced they have finally embraced SIP (Session Initiation Protocol). The platform for doing so will be Cisco Unified CallManager5.0, the call-processing component of the ...

Cisco System Inc.’s update to its CallManager IP PBX — introduced this week with native SIP support — will require broader upgrades to other network ...

Cisco’s update to its CallManager IP PBX – introduced this week with native SIP support – will require broader upgrades to other network infrastructure gear ...

Cisco Systems Inc.’s update to its CallManager IP PBX — introduced this week with native Session Initiation Protocol (SIP) support — will require broader ...

We have a CUCM 8.5 cluster here, and a CME in China. When we make a call from China to here, and the call goes to voicemail, the voicemail servers see the source IP as one of the Callmanagers in the ...