Time-of-day clock synchronization in commincations networks

Details Time-of-day clock synchronization in commincations networks Time-of-day clock synchronization in commincations networks

1996-02-27

1999-02-02

Shankar, Vijay

Telephonic communications

With usage measurement

379 11, 379 13, 379124, 379126, 379139, H04M 124, H04M 1500

Patent

active

058675647

ABSTRACT:
A system for service control and operations for a telecommunications network. In particular, an architecture and method for a service control and operations element system. The system communicates with a plurality of interconnected telecommunications network elements via a switching and signaling subsystem. The system provides and controls the functions of the telecommunications network, including a method of measuring delay between the time a customer dials a phone number of a called party and the time the customer hears a ringback tone indicating that the called party was alerted to the call, a method of synchronizing clocks located at individual network elements with a centralized time source, and a method of time-of-day clock surveillance.

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