Unified Communications Infrastructure

Hi, I'm look for some clarification on the relationship between Domains with regards to SIP domain on Expressway, Presence domain on IM&P and corporate internal/external domains. Basically I'm a bit confused as to the relationship between them. e.g. ...

Hi everyone,   one of our locations has been set up with a BE6K some years ago. They had no virtual infrastructure of their own at that point, so that was the only reasonable choice.   By now, the location has grown, and they have their own set of ES...

Ugh, I hate the CUCM web interface. Why is this software so ridiculously overcomplicated and difficult to use? Am I just overlooking something somewhere?   Phone died, need to replace it with an exact identical phone. 1. Devices -> Phones -> Select o...

Hi All, We trying to integrate the Unityconenction with Office 365 and the test failed with DNS .   08:29:06.561 |1844,Creation Thread Group,{be5fac49-8f7e-4d1f-abea-61443df1430d},CsExMbxLocator,10,[CsExMbxLocator/CsExMbxLocator.cpp:1213]: HTTP reque...

Hi,   We have third-party sip softphones. There is no any problem during failover scenario. When primary node is down, registered users moves back up node.   However, we have a problem about fallback scenario. When primary is up again, we send regist...

We currently have the following implementation:CUC 9.1 --> SIP --> CUCM 9.1 --> SIP --> Cisco 3945 --> QSIG --> AvayaI am struggling to get SIP MWI to get translated to QSIG.  Following the below guides, it should be working, but looking at the debug...

I'm looking at building an Expressway 8.10 solution to support the registration of home-worker phones (currently supported via The Office Extend routers that are EOL). Looking at the Cisco design docs they recommend the Exp-E has a 2 armed design, wi...

Hello , A client of mine  uses unity connection for their out of hours greeting or message.   They did not want it use a working-hours schedule because they do not have any set time for opening and closing the office. I managed to achieve this by set...

We have an old Cisco C20 endpoint that we are trying to register with our Expressway.  The C20 is external to our domain so we know it has to go through the Expressway-E to get to the C.  We get the following error when trying to register the C20.  W...

Hi All ,I installed CUC and configured voicemail for users and system call handler but when i call call handler number i heard voicemail messagei configured CTI RP that forward all to voicemail