How to dial Polycom RMX systems (IP##room number) through ExpressWay

[reigo.rannak]

Hi all

We have several SX10 endpoints registered to CUCM. External calling is through Expressway (C and E).

I'm able to make SIP calls like room@domain and also H323 calls with IP. But I have been looking for solution to call Polycom RMX 2000 system.

I have tried several options.

* Calling out with number@ip and make a transform in VCS-E and search rule will route this Traversal Zone.

* Calling out with ip*number@external and make also transform and search rule in VCS-E

There is no way to route "ip##room_number" out. 

When I locate the number i get different errors like:

• • Found: False
• • Reason: Resource unavailable - Loop detected
    
  • Reason: Resolution failed

Does anyone have experience with that and can help me out?

[Wayne DeNardi]

The ip##room format is a non-standard Polycom specific format and not supported by many other vendors.

You will need to change the format of what is dialled to room@ip.

This has been discussed on many occasions before in these forums.  Here's one thread where I provided a similar answer: https://supportforums.cisco.com/t5/telepresence/how-to-call-dx80-ce9-to-a-room-in-polycom-rmx/td-p/3394097

[reigo.rannak · Accepted solution]

Figured out that Polycom RMX will route call correctly when calling roomNumber**@IP