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).

Cell Sector or Cell Face

An area consisting of a certain portion or all of the total coverage area of a cell site. One face of a cell antenna, typically three‐sided, that...