IP Telephony and Phones

In my lab i have router c2801 + c3750 and two phones: 7941 and 7960. All refurbished.  7960 works for me, is registered. Problem is with 7941. Phone gets ip address from dhcp server but on the phone i still see: upgrading, then cisco and again upgrad...

Hi guys,I upgrade from 9.1.1.20000-5 to 9.1.1.20000-28.But system show upgrade fail.Then I reboot Cucm and see the picture.I reboot Cucm can see the picture. I must select Continue to boot cucm.How I can resolve this issue?Thanks.

Hello all,   We recently installed a few CP-8845 phones with Sennheiser Bluetooth headsets. At first everything seemed to worked flawlessly however one particular feature doesn't seems to work.   When you warm-transfer a call the headset completely f...

I am attempting to troubleshoot an issue where a branch is unable to dial the internal number for IT (555) users get "User is no longer available" Have checked CUCM in route patterns but nothing jumping out to me..  All other branches are able to dia...

Customers on DLU based versions (V8.X and earlier) for CUCM, UCONN, and CER products have until November 30, 2017 to migrate to Version 10 or above while leveraging GLO support. After November 30, 2017, customers will no longer have the ability to tr...

Hi Folks,   I have a CME and CUE on the router cisco 3925 and when i have new message on phone number 2000 the mwi doesn't work ? what is the reason? CME Configuration: Site-C#sh run Building configuration... Current configuration : 3253 bytes ! !...

Hi guys, Had a bit of a specific request come from a user to set up an an EM account and extension with voicemail but for the voicemail to be disabled when the account is logged out and enabled when logged in. Ideally this would be automatic but as f...

Hello All I have 3 phones that got stuck in the upgrade screen. I tried to do a hard reset but after the ohone restar the upgrade window appear again. These phones were working fine yesterday in the same node, but today they got stok in upgrade scree...

Dear Readers and Guru's, We are using a Cisco SX20 with ISDN Link due to some our regional offices still using ISDN connection, anyways, this is working fine. The only problem I am experiencing is the fact there are a lot of unknown established calls...

Our CUCM 11.0.1.20000-2 on BE6K-S. Recently we found that phones are not auto registering. While we manually add phones, it is working.  In phones status messages is showing TFTP timeout. I did packet capture in Call Manager.   Requst to CTL and ITL ...

So, I have got a license for Esxi 6.5 to install CUCM and went to install it on my laptop as a type 1 hypervisor but the Qualcomm Atheros AR8172/8176/8178 PCI-E Fast Ethernet Controller is not supported by esxi.   I came across citrix xenserver and w...

Unity Connection Serviceability Version 7.0.2.10000-38Connection Message Transfer Agent and Connection Notifier services show as deactivated on Publisher in Unity Connection Serviceability but Activiated and Started on Subscriber.I can't see how to a...