Different Cisco CallManager releases require different Cisco IP Telephony Server Operating System (OS) service releases. One train might only support Windows 2000 OS and another might be for Windows 2003 or Linux. You can confirm you have the right OS for your CCM version by consulting the CallManager compatibility matrix (I believe this is the most current) - http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/compat/ccmcompmatr.xls
I'm not able to access my old voice mail messages all of a sudden. The recording says something like 'the message is currently not available'. This has never happened before in all the years I have been using this system. I have t...
If you have 2 ISR routers, one acting as Failover, do we need to have both the same number of SRST licenses on the 2 routers?
No. You will only need the SRST licenses on the primary router. Because this feature...