I have the following running and testing in a simulated lab test environment
2 - Cisco Unified Communication Manager CUCM 8.6 acting as gateway trunk
1 - Cisco Emergency Responder CER 8.6
2 - Cisco IP Communicators
Everything seems to be working except CER does not seem to be presenting the correct ELIN to the simluated PSAP, it is showing my regular phone number or extension instead. I can see in the CER Call History that it is picking the correct route pattern and ELIN number.
In the administration guide it says that I must configure the gateway to sends th actual calling party number rather than a generic number.
I tried changing various "Calling" settings in my outbound calls in trunk configuration without success. Any ideas?