IP Telephony and Phones

dear all   We are planning to configure the cisco gateway E1 with mgcp protocols, however during srst we have both sip and sccp phone to support survival. I have configure mgcp fallback , sip srst .during srst  everything works as expected ,but when ...

While working on a recent CUCM 10.5 install i encountered the error "CUCM IM Presence 10.5 : Cannot assign users to a server that is not in valid state" while assigning new users to IM presence group.In the beginning i restarted both IM presence serv...

I want to Migrate CME, this is information detail :   current :  CME Version : 7.0.1 Firmware 7911 : 8.3.3S   New CME :CME Version : 11.7 Firmware 7911 : ?   Can CME 11.7 using firmware 8.3.3  for 7911 IP Phone? Because i dont have a access to existi...

i have issue about dial peer voice pots  its change by it self suddenly even if i edit and save the correct one here u are the correct config dial-peer voice 1 pots trunkgroup pstn trunkgroup Mobile corlist outgoing mobile-long description ** Inside ...

  We have CME in the main office with a remote site connecting across ASAs. Paging works in the main office, but if the remote site tries to page their office, the handsets look like they are paging, but no sound comes out.  

Does anyone know a good software to install in a laptop and make mostly SIP or H323 test calls for testing purposes? I often happen to install SX as standalone and I want to test them as SIP incoming or outgoing calls from and to my laptop. I know th...

How can i find extension mobility profiles not logged into a phone?  I know how to find profiles and the phones they are logged into.  What I want is a list of extension mobility profiles that are not currently logged into phones.   This way I can cl...

i have on 16 cisco 7821 all working fine but one of them is not working always giving me busy tone when i try to call any number internal local international .. i tried every thing i reset the phone but not working the phone which has the problem is ...

Hello.We are running a CUCM 8.5 cluster and we have a Cisco 2901.The 2901 is our MTP, CFB and CUBE.Whenever we put an inbound or outbound PSTN call on hold, there is silence (no bip bip, only silence). Internal calls have no issues with MOH.We use So...

Not necessarily a UCM issue but does anyone have any suggestions on combating spoofed DIDs. We suspect some robo-calling systems are using some within our range.