I'm using a CallManger Express on Cisco 2821. Here are my questions regarding the E-991:
What are configuration requirements if each IP Addressable Telephone is to be uniquely identified from the Call Manager to the 911 Center?
I'm connected to PRI, but in case of emergency call i think the IP-PBX will be located. We have some phones way far from the IP-PBX location, so if the emergency call is coming from one of these phones, how we locate the phone. This is our issue, and we want to know if there is any system we can apply for that.