IP Telephony and Phones

Dear Team,Facing two issues with our IP phones. Details are mentioned below:Issue 1: Call Drops After Few SecondsCalls are getting disconnected automatically after a few seconds of connection. This issue is happening frequently on both incoming and o...

hi,I would like to setup a voice lab, I don't have ip phone. I would like to know if it is possible to run many instance of IP COmmunicator on same PC in other to simulate many phone ???thank in advance.

All,  Upgraded from 8851 to 9861 and cannot figure out how to get to the monitored users (busy lamp) when transferring a call. On the 8800 series, you'd press up on the navigation cluster, and it would show your monitored list. Now it looks like you ...

Hi all,Please help me understand why a new Cisco IP Phone 9861 is not working on an Ethernet cable where the old IP phone 7975 is working?The new phone works when plugged in directly on the switch port, but not on the desk where the old phone is stil...

Colleagues, good afternoon, I'm trying to sign a certificate using let's encrypt. But the root record A leads to the official website of the company, which is located at the hostel. As a result, the system cannot sign a certificate indicating DNS:com...

Hello All,I'm trying for weeks to make it work, Asterisk SIP (local) and Webex-(video)calling together on one CP-8845-3PCC (MPP) phone. Doesn't work. What I've done and wat is working:Local Asterisk PBX: Working with 4 extensions.Working remote PBX (...

Hello Guys, Our company has a two CUCM 8.6.2 cluster, and we are planning do grant write access to branches technicians.Did a research and found some topic regarding configuration change logs using Audit Log, performed some tests but didn't achieve t...

Hello All,I just came back to my desk and my direct dial was gone from my phone.  Apparently someone who is an admin on our call manager accidently deleted my number from the system.  We allow our admins to make changes using their AD account to logi...

Hey all,Replacing an ATA 190 with a brand new ATA 191. When i power up, all it does it show a power light on solid green, the network light is fast flashing (its on a busy network), and the PRT button goes solid amber immediately (see the pic). Nothi...

hello - wanted to reach out to get an outside opinion on this.  We are forwarding our internal transcription number (4 digit) out to a 833 XXX XXXX number.  I had concerns that we had overlapping route patterns, as we are currently moving from PRIs t...

Hello,We have an old CME on a Cisco 2921 router.A user is trying set his phone to call forward all calls to an external number.It works when the call comes from an internal phone but fails when the call comes from an external number.When it fails (ex...