Unified Communications Infrastructure

i have cucm P+S 12 and unity P 12.5 , i went to check my unity cluster managment and i found my sub unity showing0 total ports and 0 active ports while my publisher unity showing 20? is that a normal behavior? how do i increase the unity subscriber p...

1. Is PRACK necessary for all 183 session in progress responses?  

What's the difference between utils dbreplication reset all and utils dbreplication clusterreset?  Please correct me if I'm wrong here, utils dbreplication reset all will reset replication connection and do a broadcast of all tables across all nodes....

Is Call Manager fast start or slow start. Please explain. 

I have a ton of ATA 190's in production on CUCM System version: 10.5.2.12901-1.These devices constantly become unregistered and have to be reset before they will work again.I use these for fax machines.Any idea what causes this?If you are only connec...

I am working on a 2 node CUCM 10.5.1 cluster that also includes a Cisco Unified Attendant Console Advanced  10.5.1 server. The server is currently pointed at the publisher server, but when that server is down it will not register with the subscriber ...

Hi All, It seems PLM cannot be selected on Cisco Collaboration Virtual Machine Placement Tool?I have checked it through several time but could not find it, does anyone know why PLM is not there? Thanks,Tibor 

Hi Geeks, I have CUCM 12.5.1.10000-22 which works fine but Self care portal PIN change not working . It showing on portal PIN changed but during login it showing error 201 and have to login from old PIN.It was working as i remember a week before and ...

our cucm have FAC enable and link with 3rd party billing for reportingon month end it will create billing reportproblem is sometimes every 2 or 3 month, the report is not generateneed to restart cucm CDR services than the report will be generate from...