IP Telephony and Phones

Hi, We have around 70 cisco 7945 ip phones, and we need to change the background image. Is there a way to push it from the call Manager for all phones automatically and apply the image without selecting it in each phone. I have followed the below ste...

Hi All     Regarding Work From Home situation, we want to implement Mobile Voice Access (MVA) Solution on CCM that allowed user's mobile call in to office and out of system to customer external number, I've checked the document but not realize that c...

I have a Cisco 7821 3PCC registered via SIP with an ITSP that is unable to make external calls but has no problems receiving inbound calls.I factory reset it and put in all the SIP settings I needed to put in to register it. Opened up my home router ...

I've had quite a journey troubleshooting a bandwidth issue reported by a number of branch offices - the upload being significantly slower that what the circuit guaranteed. What was thought to be either an ISP issue or a possible issue with copy past ...

I have an admin user that is unable to login to their account because it is getting locked out constantly.  It looks like something is constantly attempting to login to their account so every 30 minutes when it gets unlocked it just gets locked again...

Hi All, I need to change the line partition of several phones based on a IP subnet. BAT is rubbish. I'm quite sure someone has done it and I suspect its a CLI command but I'm not that good with that sort of thing. Any ideas folks? ThanksPaul

Hi ,I have the below CUCM servers 192.168.1.100,1.101 (Pub and sub)and cm group are in the order of sub-pub (1.101 then 1.100)Here is my question I have third party sip application ,If I want to dial the DN  5500  , what IP  addres (1.100 or 1.101) s...

hiI don't know anything about IP-Phones. we have more then 20 CISCO 7940 and learned to configure them manually.now there's problem with some of them:1- some of them reset themselves during configuration or after configuration, and after reset, I hav...

If a remote destination is calling in to another desk phone on the same cluster (PBX) the caller ID from the attached directory number. If you call to another cluster it will just show "WIRELESS CALLER". I am wondering if there is any solution so all...

Hi! I have a Cp-3905 phone I want to use with my VoIP carrier instead of my old ATA box and old analog phone. I can't find where in the settings to set SIP domain, username and password. Is is not possible to use this phone as a SIP phone with my VoI...