Class 5 central office, at which subscriber loops terminate.

A switching center where subscriber lines are terminated and where toll calls are switched through to the terminating destination.

central office to which a telephone end user is connected; the final central office before the end user's telephone. The central office trunking/switching entity where telephone loops are terminated for purposes of interconnection to each other and to the network.

See Central Office Class 5 Central Office Switch owned and operated by a LEC.

a switching system that interconnects calls between local customers and the telephone network

A class 5 office of a local telephone exchange where a subscriberÕs loop terminates.

The central office(s) from which the 9-1-1 calls originate.

EO is an LEC (BOC or an ITC) switching system that exists within a LATA . Here local loops to customer stations are terminated for the purpose of interconnection with each other and also with trunks. CO (central office) and EO are commonly used interchangeably.

The CO to which a subscriber is connected.

The Central Office(s) in the E911 System receiving E911 calls.

The location where carriers place telecom equipment closest to the customer. Typically, this is where customers are provisioned. Class 5 switches are typically located here.

The first point of access to the PSTN, or the point at which the subscriber loop terminates. Also referred to as Class 5 office, local exchange, central office, and serving office.

A local exchange office where the user's loop terminates (Class 5 telephone central office.)