Patent ID: 8340647

Claim:
A system for controlling communications between a call control server, a wireless handheld telephony device, and at least one second telephony device, the system comprising: a data processor; a communications system adapted to process signals sent between the wireless handheld telephony device, the at least one second telephony device, and the data processor; and media readable by the data processor comprising coded program instructions adapted to cause the processor to: after receipt of a request to transmit modulated control signals representing one or more data messages from the call control server, temporarily establish a conference bridge with a modem device in communication with the call control server; receive the modulated control signals from the call control server via the conference bridge with the modem device; transmit the modulated control signals to the wireless handheld telephony device through the audio channel of a leg of a communication session previously established between the wireless handheld telephony device and at least one second telephony device; after receipt of modulated response signals representing one or more data messages from the wireless handheld telephony device, transmit the modulated response signals to the modem device via the conference bridge with the modem device; and when the modulated control signals have been sent and the modulated response signals have been received, disable the conference bridge with the modem device.