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CUCM 8.5 SIP Trunk to Call Centric SIP Provider

I am a Networking instructor.  Trying to set up a sip trunk to a service provider.  I am trying to create a lab environment for my students.

I have set up a CME sip-ua connection and successfully made sip calls from CME to CME labs.  Now I would like to show how to get CUCM 8.5 to connect to the sip provider and make calls from CUCM 8.5 to a CME lab.

I am not sure how to approach this lab project.

Any help would be appreciated.

Thank you


Message was edited by: Terry Waldvogel I have created the following cisco 7941 SCCP phone ------ cucm 8.5 ---- 3660 GW  with sip-ua registration to callcentric  ------ cloud ---- Remote location 3725 with a separate sip-ua registration to callcentric and CME ----- Softphone SCCP registered to CME The softphone  on when I dial the callcentric number registered to the 3660 the 7941 phone rings, but when I answer the phone, the softphone continues to ring and never detects the connection.  I have attached the configs for the routers. Thanks

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