IP Telephony and Phones

We are a company of @ 300 employees and we are on version 12.0.1.21900 of Cisco unified CM. The problem we are facing seems to be random. When our users set call forwarding on their Cisco IP phones, usually 7940 and 7960 models there are times when t...

Hi Team , I need a help with DTMF muting. We have a call recording system(Active Recording) which communicates with Call manager (v11) over Sip trunk. DTMF sequence identification can be configured in that call recording system. However what is requi...

I've read that ils is independent from gdrp and that ils is exchanged between cluster while gdrp us exchanged on the data network -is this true?   Does ils require any data network interface action on routers    What is the difference between ils and...

Hi team,   Just wanted to know, is there any different if you reset a shared extension from call routing tab[Call routing==> DN] and from through one of the phone[ie device==>Phone==>extension]

We have 3 line groups setup for Reception -   LG 1 - goes to the main reception number LG 2 - is setup with 5 different extensions w/ circular distribution LG 3 - is a broadcast for several different numbers if the first 2 LGs fail to answer   Someti...

Hi All, Good Day. I'm experiencing unusual behavior of CUCM CDR, I see a call record with 0 Duration but the time difference is more than a minuet than the default setting on CUCM (with call forwarding). I attached the actual CDR report we gathered. ...

 Hi Cisco techs, Please advised if this is in the wrong forum. Creation of sip trunk.. man there's so much to this stuff.... Keep getting a Add failed. [491] The specified name has invalid characters or is not formatted correctly for this device type...