Voice and data exchange over a packet based network with fax relay spoofing

A signal transmission system, comprising:

• a network;
• a first telephony device;
• a second telephony device in a communication with the first telephony device through the network;
• a first data exchange coupling the first telephony device to the network, the first data exchange comprising first spoofing logic to detect network delay in a first path from first data received from the second telephony device, the first spoofing logic being adapted to generate first spoof data for the first telephony device when the detected network delay in the first path exceeds a first threshold;
• and
• a second data exchange coupling the second telephony device to the network, the second data exchange comprising second spoofing logic to detect network delay in a second path from second data received from the first telephony device, the second spoofing logic being adapted to generate second spoof data for the second telephony device when the detected network delay in the second path exceeds a second threshold.

Computer-readable media embodying a program of instructions executable by a computer to perform a method of transmitting data, the method comprising:

• receiving data from a network;
• detecting network delay from the received data;
• adding spoof data to the received when the detected network delay exceeds a threshold;
• and
• transmitting the received data with the added spoof data to a telephony device.

A data exchange, comprising:

• receiving means for receiving data from a network;
• detection means for detecting network delay from received data;
• and
• spoofing means for generating spoof data when the detected network delay exceeds a threshold.