Voice over long term evolution-called party status

摘要

Devices and methods are provided for implementing a network resource management system that reduces network signaling traffic through a network. A network server utilizing a communication signaling protocol is configured with functionality that reduces call set-up signaling traffic. Instead of exchanging communication signaling protocol related signaling between a calling end user device and a destination end user device when attempting to set up the call, the disclosed examples provide for determining a call status of the destination end user device before sending any communication signaling protocol related messages to the destination end user device. If the destination end user device is unavailable or is on another call, the network server uses communication signaling protocol related messages to connect the calling end user device with a voice mail server related to the destination end user device and foregoes sending communication signaling protocol related messages to the destination end user device.

主权项

1. A method executed by a telephony application server serving a destination end user device, comprising:
receiving, by the telephony application server, a call request from a calling end user device to initiate a call to the destination end user device via a communication signaling protocol; based on the received call request, identifying, by the telephony application server, the destination end user device that the calling end user device is requesting to call; determining, by the telephony application server, a call status of the destination end user device prior to initiating the call to the destination end user device; and in response to the call status indicating that the destination end user device is currently on another call:
redirecting, by the telephony application server, the call request from its normal network path;modifying, by the telephony application server, the call request by incorporating an indication of the destination end user device call status into a customized header to provide a re-directed call request;forwarding, by the telephony application server, the re-directed call request to a voice mail server associated with the destination end user device; andbased on a response to the indication of the destination end user device call status in the customized header, presenting, by the telephony application server, a voicemail option on the calling end user device.