09-19-2008 01:51 AM - edited 03-15-2019 01:24 PM
Does CP3911 (SIP) and 7931 phones supported only on UCM Express ?
03-16-2010 09:05 AM
The Cisco CP-3911
is Compatible with Cisco CallManager Version 5.0(x) and later, using Session Initiation Protocol (SIP)
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