IP Telephony and Phones

Hello everyone.I had a server cucm 11.5 be6000 which manages phones sccp and sip. but after a few days the phones are all disconnected I made my diagnosis and I found that if I connect the sccp phones the callmanager works without problems if I conne...

Hi everyone,   I'm running CUCM 11.0 and have tried changing the G.729 Millisecond Packet Size service parameter to 60ms. However looking at the throughput of the RTP between SIP phones, and looking at the SDP messages within the SIP invites, it seem...

What "call state" do I edit when using Abbreviated Dial on a 7900 series phone?In testing, I press the speed dial number I've already setup, the soft keys at the bottom are Dial, Backward (<<), AbbrDial and Cancel.I don't see those soft keys in any o...

Good day Experts, I have a Cisco Unity version 9 which I know I should be upgrade will in due course this year. I have two issues. 1. I have forgotten how and where to reset end users voice mail PINs. When people leave voice mails they are asked for ...

Hello all ,I have problem with device type 7861.Randomly, when we call to extension setting on this device we got busy tone.The problem was solved by rebooting the phone.My CUCM version is 11.5.1.11900-21.my version of device sip78xx-12-1-1-12 .any i...

This error appears to be very common to many users thid morning. Trying to login cisco 7940 get HTTP 400 error message 

Hello voip experts   My Cisco IP telephony is a bit rusty, but I wanted to check whether my understanding was still valid.  We have a customer reporting that their Cisco 8821 handset rings, but they failed to answer it - press the call answer button ...

We are using CUCM 10.5 version where i am unable to find the CDR reports for date which was 4 month back.... 1. Are the CDR reports over write after some time2. Is there any setting for CDR reports configuration for any particular time stamp3. Is the...

What code or number do we use to announce over our speaker system in the shop area from our IP 7942. I'm new here and no one knows and we have no manual

I have a third party software I can dig and find this information, but was hoping I could run a command that would show me all the ports in the system and the associated extensions.These are the two pieces of information I'm looking for, port and ext...

Hey It is possible on CUCM to block iphone from updating phone display based on SIP Response headers on an outbound call? For example;User is dialing 7777, on the route list this is replace by a REAL NUMBER and call is send to CUBE, CUBE sends SIP Re...