Hi All, On the testing for Skype for business on call to Cisco CMR, I found the call is failed and cannot be connect. Did anyone had successfully case in video call on Skype for business call to CMR? Thanks 

Hi All, I know that MX300, DX series and 78XX, 88XX can register to CUCM from external network through MRA. But is it need the public certification for expressway E? How about the expressway E and C as well as CUCM are using office internal cert ser...

Hi All, Just want to get the information as title. If one Publisher is placed in data center, and other Subscriber is placed in the remote location through MPLS (2M) Can anyone tell me what is the time taking for the publisher and subscriber databa...

Hi All, As titled. If there are two region for my client Region A & Region B The communication with Region A and Region B is using G.729 due to the MPLS bandwidth limitation. Both Region A & Region B have voice gateway for T1 line with DSP PVDM-3 64...

Hi All, I try to test URL dialing from Jabber which registered in my CUCM to external partner company (uc.ABC.com) Jabber device. I create a sip router pattern on CUCM, for example: uc.ABC.com And also match this sip route pattern to SIP trunk that ...