When a user dials 911, the call is routed to our vendor Bandwidth with the programmed calling line ID.  An address should be associated with the calling line ID.  Bandwidth then passes the call with the calling line ID and address information to PSAPs across the US and Canada.

It is important to understand the call passes to Bandwidth with the calling line ID because there are 2 possible configurations that can be used on our platform.

The first possible configuration, most logical, yet less common, is at the user level.  A user can be configured to outpulse their own calling line ID which can be the user DID or can be a unique number. 

This means a user, at the user level, can also be configured to outpulse their own calling line ID number and have a unique address associated with their DID.  This is most common for remote users.

The second possible configuration, and most common, is the group configuration (call processing policy) which can be set up in a few different ways.  

A) group can be configured to outpulse the group calling line ID number

B) group can be configured to outpulse each user DID

C) group can be configured to outpulse configurable calling line ID.

Why is it important to know this? 

When troubleshooting items related to emergency services, it is important to understand how the information is transmitted and what information is transmitted.  It is also important to understand the possible configurations that can be in play.