Tag: Ucm

2 min read

CUCM 11.5 is here and with it, deprecated phones announcement

Looking for more information on this one, is always good idea to look at the field notices on CCO. In a nutshell here is a list of the phones that will no longer be supported by CUCM on version 11.5 Problem Description The following phone models are deprecated and are not supported by Cisco Unified Communications Manager Release 11.5(x). If you are using any of these phone models and you upgrade to release 11.5(x), you will be unable to use the phone after the upgrade. After you switch over to the new release, registration on the phone will be blocked.

ccie collaboration collaboration CUCM CUCM 11.5
2 min read

CCIE Collab - Gateways and Trunks in CUCM

Hi there, so today I wanted to bring up something that was very confusing to me long time ago. The concept of MGCP, H.323 and SIP. these 3 are very big and there is a lot of information about them, I just want to explain with my own words what every single protocol means for me and the way I had to put it in my head before I was able to understand the technology behind it.

ccie ccie collaboration collaboration CUCM