Patent ID: 7403604
Filing Date: 2008-07-22
Classification: H04L

Abstract:
1. A gateway device for connecting an analog telephony device (ATD) to a voice over packet (VOP) network, the gateway device comprising: a controller; a first interface coupled to the controller, the first interface configured to enable the gateway device to transmit and receive packets over the VOP network; and a second interface coupled to the controller and the first interface, the second interface configured to enable the ATD to transmit and receive voice-band communications over an analog telephone network though the gateway device, the ATD capable of processing an enhanced services display (ESD) message in accordance with an enhanced services display message protocol (ESDMP) using a voice band data message format to provide an enhanced service in addition to a standard service, wherein the controller is configured to detect if the ATD is capable of operating according to the ESDMP, and to transmit the ESD message to the ATD in accordance with the ESDMP to provide the enhanced service if the controller detects that the ATD is capable of operating according to the ESDMP.