Unified Communications Infrastructure

i have a situation here , i registered GXP2140 IP Phone (grandstream) to cucm 12.5 as adv 3rd party sip phone using seperate sip profile, the problem is when GXP2140 calls into cisco phone , it rings one or two times and hangs up, but the other cisco...

My customer is working with a new ITSP and they are saying there is a limitation on their equipment that it must present signalling and media to separate IP addresses. I'm wondering the best way to achieve this on CUBE. We will be configuring the CUB...

I have some Polycom RealPresence Desktop SIP clients registered on CUCM.These clients lose registration on CUCM periodiclyI view CUCM log in RTMM. There is messages about restart Polycom SIP client by CUCM: Apr 13 2022 22:04:51 UTC : %UC_CALLMANAGER-...

Hello Dears, I know that the bind media|control source-interface command influences in the source of a SIP request whether the network is routing the same interface or another one. So, signaling/control and media binding are used to change the source...

Hallo TeamHow to get call history from cucm of a specific number.  I want to export all call history like dialled call received call etc . I tried to find it under CDR but this format is not a user friendly.Client wants some different format .So plea...

Hello All    My CUCM is 12.5.  it connected to another PBX through SIP Trunk. I configured DSP that include G711 and G729 for all Phones.  I found that INVITE only has G.729 when I make a call to the PBX through the SIP Trunk.     Can I add G.711 in ...

Hello everyone, A costumer is using Call Manager version 8.5.1.11004-25.We were trying to modify the button items for a 8941 phone to add BLF buttons but we are seeing this error: Update failed. TypeDbErrors.gen25310.I also tried to modify button ite...

Hello,We have a 10.5(2) installation with 3 CUCM and 2 IMPRE servers. The VMs reside on a host where ESXi is at 5.5 version.We would like to upgrade them to 12.5(1)SU6 and move them to another host where ESXi is at 6.5 version.Because I am not at all...

I'm building a new Expressway cluster. Before cutting over from my old one, I want, obviosuly, want to test it. I'm trying to figure out how to test the MRA without affecting all users. Is there a way to force Jabber to use a particular Expressway wh...

We have an old UC server that hosts our on-premise license which will be decommissioned soon. It reports an error with one of the hard disk and making a loud beeping noise.Since there's no warranty on the server I wonder if anyone knows how to acknow...