Verizon Patent and Licensing Inc.

Verizon Business Global LLC

Gary Lance Lockhart

Stevan Harvey Leiden

Brian Edmund Somes

Arthur Doskow

Carl T Leonard

Kevin V Bohn

Joel M Krause

Timothy W Bischoff

An approach is described for providing shared trunking between a telephony gateway and an end office switch. The telephony gateway processes a packetized voice call, and interfaces a shared trunk to an end office switch (e.g., Class 5 switch) configured to switch calls over a circuit-switched telephone network. The trunk utilizes out-of-band signaling (e.g., Primary Rate Interface (PRI) signaling) in support of call establishment or teardown of the packetized voice call.

Method and system for supporting shared local trunking

A device receives a Session Initiation Protocol (SIP) response that includes a load header associated with a downstream Session Initiation Protocol (SIP) device. The device also determines an amount of traffic to send to the downstream Session Initiation Protocol (SIP) device based on the load header. The device further sends the determined amount of traffic to the downstream Session Initiation Protocol (SIP) device.

Session initiation protocol (SIP) overload protection

Growing community of inventors

Allen, TX, United States of America

Gary Lance Lockhart