Apparatus and method for providing existing 1ESS and 1AESS telephone switching equipment with the capability of using the SS7 protocol

Patent 5086461 Issued on February 4, 1992. Estimated Expiration Date:

January 23, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

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Apparatus and method for providing existing telephone switching equipment with the capability of using the SS7 protocol Patent #: 4853955
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Inventor: Thorn , et al.

Inventors

Assignee

Network Access Corporation

Application

No. 469093 filed on 01/23/1990

US Classes:

379/230, Signalling path distinct from trunk (e.g., CCIS)379/221.12, Service switching point (SSP)379/284, With processor379/289Translator

Examiners

Primary: Brown, Thomas W.

Attorney, Agent or Firm

Meier; Harold E.

International Classes

H04M 003/42
H04M 007/06
H04M 007/12

Abstract

The invention relates to upgrading existing telephone central offices having 1ESS or 1AESS switching equipment to utilize the SS7 protocol. In particular, the 1ESS and 1AESS switching equipment is provided with the capability of controlling the connection, management, and disconnection of telephone circuits using Signaling System Number 7 (SS7), a national and international standard set of protocols for providing such circuit control and providing and receiving information via the SS7 protocol for enabling enhanced service in the switching equipment.