IP Telephony and Phones

Hi,I got a problem.I have two CUCM clusters : one in v9.1 and the other one in v8.6I made i SIP trunk between the two clusters in order to be able to make call from one to the other and it works.Now i've just configured a hardware conference bridge i...

I have a problem with a 7960 phone whereby an additional line configured on the device does not light up when it is in use.other lines on this device do light up when in use and i can't see anything different amongst the settings of the lines that do...

hi, i have CME and fxo ports, one line comming from service provider.if call from outside it rings one phone (ext 2000) at reception, i want if one call from out side to ring two extension at same time (2000, 2002)my config.voice-port 0/0/0connection...

When I call to another extension, they can hear me, but I can not hear them What is problem?

Hello all,We have several 7911 IP phones that load term06 or term11 and load files with version 8-3-2-27 that I think is version SCCP 8.8.3, right?I've forced on UCM to load version SCCP8.3.3S but it doesn't upgrade.The only thing I've seen is on the...

Hi,i changed the security mode in CUCM 8.5 to "mixed mode" using 2xUSB Token and CTL Client.i can't update LSC certificate into Cisco 8941 and 9971 ip phones.Any ideas about this issue?Regards

Hi,I used Cisco CTL Client and USB token to inplement security in CUCM 8.5, i have a question, is video calls encryption supported on CUCM 8.5 ? Regards,Mahmoud TAZI

this is a problem related to mva i hav a h323  gateway configured with an mva application with incoming dial-peers when i dial the mva number from pstn it asks for the pin number when i try to forward the call to a numberthe call gets disconnected in...

Hi,I have to upgrade a 4.2.3 cluster to 9.1 while migrating on UCS.I planned to do a fresh install of version 9.1 and then proceed with export/import of data.MIG-CUCM-USR-A and MIG-CUCM-ENHP-A have been sold. So I haven't got any PAK licence file.As ...

Hi ,I am  having a SRST configuration for both SCCP and  SIP phones (9971 IP Phone) . SRST version is 8.5 with 9971 phone firmwares (same version as  CUCM) that is ‘sip9971.9-0-4.loads’  with the additional .sebn files loaded in the flash. SRST fall...