Telecom Glossary OP

Operator Service Provider - OSP - OS Provider

A common carrier that provides services from public phones, including payphones and those in hotels/motels.

Outbound

Outward Sending - Call Originating - Dialing Out

Packet Switching

The method used to transmit data on data networks. Unlike the public switched telephone network, packet-switched networks do not reserve a circuit between end points. Instead, they break up messages or files into many small packets. Each message packet may take a different route from origin to destination, traveling along network circuits that are shared with packets from other messages.

Paging System

A one-way mobile radio service where a user carries a small, lightweight miniature radio receiver capable of responding to coded signals. These devices, called "pagers," emit an audible signal, vibrate or do both when activated by an incoming message.

Long Distance Glossary (A-1) (A-2) (A-3) (B-1) (B-2) (B-3) (B-C) (C-1) (C-2) (C-3) (C-4) (C-5) (C-6) (C-7) (C-8) (D-1) (D-2) (D-3) (D-E) (E-F) (F-1) (G-1) (H-I) (I-1) (I-2) (I-3) (I-4) (J-L) (L-1) (L-2) (L-3) (L-M) (M-N) (N-1) (N-O) (O-1) (O-P) (P-1) (P-2) (P-3) (P-4) (P-5) (P-R) (R-1) (R-2) (R-3) (S-1) (S-2) (S-3) (S-4) (S-T) (T-1) (T-2) (T-3) (T-4) (T-5) (T-6) (T-U) (V-1) (V-2) (V-Z)