IP Telephony and Phones

 Cisco document said it can support 500 CUBE sessions but considering the small number of CPS that it can support(it can only support 8 calls based on https://www.cisco.com/c/en/us/products/collateral/unified-communications/tdm-gateways/data-sheet-c7...

Hello. I have problem with SPA8000. I have tryed 2 of them and all have this problem.   All i have done is assined static ip address to its WAN interface. But it works only 2 min and then 2 min doesn't work. work/not work/work/not work/ping/not ping

Dear, How can i use barge from my DN(directory Number) to another DN?   I am using CUCM 11.

Hello,I try to start my IP Phone 7906, but always Configuring IP and after configuring CM List and never on.On status message I can see No CTL installed and TFTP ErrorRegards

Hi Guys   I trying to delete IMP from CUCM   Getting the Red + , Delete failed ,the CUCM IMP and presence server must first removed from presence redundancy group   how to remove it from presence redundancy group

Hi,   I am a first-time participant to the community.   I need to swap an old 2911 voice gateway with a new 4331 voice gateway. My config is OK, my question is what steps should I take to swap the hardware. And get the new 4331 up and running. I have...

Hi,   The goal is to increase security for my CUCM environment with the following 2 points 1- I need to disallow any one to be able to access this URL as it provides all user information details as mobile no. cucm-ip:8443/cucm-uds/users At the same t...

Hi all, 3 weeks ago I upgraded my CUCM Cluster from 9.1.2 to 11.5 using PCD. No issues with the upgrade but recently I have noticed that my 8861 IP phones have been going into Preservation Mode when you join a WebEx and you have WebEx call the phone....

Hello there. I already deploy CUCM 11.5 Publisher (76.76.76.151) and CUCM 11.5 Subscriber (76.76.76.154). I got my FXO card and PVDM installed on 2900 Router that act as voice gateway (76.76.76.152). I put my telco line on that FXO port 0 which had a...

Hi,   recently we switched from CME to CUCM (11.5). Basic telephony services, ITSP sip-trunk etc. are already up and running fine.    However I'm now facing a challenge on configuring the call distribution for our -0 extension. The requirement would ...

Hi All In a CUCM 11.5 , how many ip phone can be performing firmware upgrade at same time? TIA Cristian