Expressway Servers - Neighbour Zone Calls vs B2B Calls

[sysadmin5]

Dear All,

We have Expressway Series (C&E) clusters connected with CUCM and CMS servers and we have multiple Video endpoints registered as MRA as well as native registration to CUCM over LAN / WAN. We are calling to Webex Cloud via DNS zone as a B2B call from registered endpoints.

Now we have a new business case where in we are required to call one of our partner organization which are on their own Cisco Collaboration platform and separate SIP domain, as a B2B calls, not on internet but on a dedicated MPLS network due to compliance reasons.

What are my options to achieve this solution. Please I need your suggestions and recommendations

Expressway = 12.5

CMS = 2.8

CUCM = 11.5

[collinks2]

Is the sip domain resolvable from the mpls network?

[Maren Mahoney]

Cisco had a lot of docs on setting up B2B via Expressway. Here is just one:

Configure Business to Business Audio and Video Calls Through Expressway Integrated with CUCM 

Also, on dCloud the Cisco Preferred Architecture for Video 11.5 v1 lab has a module where you can practice setting it up.

HTH

Maren