Trunk

A central office circuit terminating in the phone equipment on the customer premise. A circuit between central offices.

ECC

1. Emergency Communications Center. ECC has become a relatively new term for public safety dispatch centers. These centers answer 9-1-1 calls or...

Abandoned Call

An Abandoned Call is an emergency Call in which the caller disconnects before the Call can be answered by the PSAP (Public Safety Answering Point).