If an emergency call is dropped, the public safety personnel immediately attempt to call back. If the ELIN that was sent is not equivalent to the extension number of the caller, the return call rings at a different telephone. To overcome this situation, you can, for an administered period of time, automatically forward all calls to the telephone that placed the emergency call.
Use the Emergency Extension Forwarding (min) field on the Feature-Related System Parameters screen to set the Emergency Extension Forwarding timer for all incoming trunk calls if an emergency call is dropped.
This Emergency Extension Forwarding applies only if the Emergency Location Extension is an extension on the same system as the extension from which 911 was dialed. Customers who have several systems in a campus should assign several emergency location extensions.