12 Phone Models Not Supported by CUCM 12.0

February 1st, 2019

Before the upgrade to CUCM 12.0, check the following phone models, If you use any of these deprecated phone models on an older release of Unified Communications Manager and...

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How to fix Error SIP 488 Not Acceptable in Cisco Call Manager

January 12th, 2019

Did you get this SIP error on your Cisco call manager? You already change all the codec, configured transcoder which is register with call manager and everything seems fine....

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101 Free Video Training for Cisco Unified Communications Manager

August 6th, 2016

If you’d like to know more about CUCM, we’re going to make it easy for you. We’ve put together a collection of 101 Free Video Training for Cisco Unified...

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