IP Telephony and Phones

Hello,  CUCM PUB /CUCM SUB/ IMP PUB /IMP SUB all at release 10.5.2 Let me tell you that I followed the cisco process for CUCM and IM & P I have the following error when checking the enable High Availblity in the CUCM Pub/System/Presence Redundancy Gr...

Hello,  I am trying to get a SIP trunk working but am unable to make or recieve calls. Our setup is: SIP Trunk (Provider) ---> SIP Gateway (Me) -----> Cisco Gateway (Me) --- CUCM The SIP gateway is a cisco 2900 device and is completely separate from ...

Forum, I have a customer with a Cisco 2911 that will replace a Cisco 2821.  The show version of the Cisco 2911 (last part) is as follows License Info:License UDI:-------------------------------------------------Device#   PID                   SN-----...

Dear all, I want to clarify one thing. In H.232 slow satart after Connect message what happens? 1.Capabilities exchange - Why we need it? Is this for Codec and DTMF relay Excahnge? 2. Master/Slave determination - Why we need it? Is this for Final wor...

Hey, Hope someone can help me. Having an issue with cme 9.1 and group pickup where it stopped working suddenly. When you press group pickup it asks you to dial. Has nayone seen this. I have rebooted the router and phones but didnt help. Thanks in A...

So here's my situation:  I have a Cisco 8945 registered with CUCM 11.0 and using SIP.  This phone has built-in video capabilities, which I have verified is working (I have 2 of them and when I call one from the other, both phones do video).  However,...

Hello, I have a datastore disappeared in Virtual machine Vsphere Esxi5.1, for UC . and i have a Two hard drives flashes orange and appeared in status (Failed). The strange thing is all VM's are pingable but i cannot console(SSH) them with error ( Un...