SYSTEMS AND METHODS FOR COMMUNICATING A STREAM OF DATA PACKETS VIA MULTIPLE COMMUNICATIONS CHANNELS
Systems and methods of preventing an Internet service provider from identifying a stream of data packets as carrying a voice over Internet protocol telephony communication can make use of encryption techniques to prevent the Internet service provider from examining the content of the data packets. Also, multiple communications channels may be established between a telephony device and elements of an IP telephony system. A stream of data packets bearing the media of an IP telephony communication is then separated into sub-streams, and each sub-stream is sent through a different one of the communications channels. This prevents an Internet service provider from identifying a stream of data packets as bearing the media of an IP telephony communication based on a pattern in the data traffic.
1 . A method of communicating data packets bearing the media of a telephony communication, comprising:
establishing a first communications channel between an element of an Internet protocol (IP) telephony system and a telephony device;
establishing a second communications channel between an element of the IP telephony system and the telephony device;
receiving a first sub-stream of a stream of data packets bearing the media of a telephony communication from the telephony device over the first communications channel; and
receiving a second sub-stream of the stream of data packets bearing the media of the telephony communication from the telephony device over the second communications channel.
2 . The method of claim 1 , wherein the step of establishing the first communications channel comprises establishing the first communications channel through a first port of a data network interface device that is in communication with the telephony device, and wherein the step of establishing the second communications channel comprises establishing the second communications channel through a second port of the data network interface device.
3 . The method of claim 1 , wherein the step of establishing the first communications channel comprises establishing the first communications channel between a first port of a data network interface device in communication with the telephony device and a first port of an element of an IP telephony system, and wherein the step of establishing the second communications channel comprises establishing the second communications channel between a second port of the data network interface device and a second port of the element of the IP telephony system.
4 . The method of claim 1 , wherein the step of establishing the first communications channel comprises establishing the first communications channel between a first port of a data network interface device in communication with the telephony device and a first element of an IP telephony system, and wherein the step of establishing the second communications channel comprises establishing the second communications channel between a second port of the data network interface device and a second element of the IP telephony system.
5 . The method of claim 1 , wherein the step of establishing the first communications channel comprises establishing the first communications channel between a first data network interface device in communication with the telephony device and an element of the IP telephony system, and wherein the step of establishing the second communications channel comprises establishing the second communications channel between a second data network interface device in communication with the telephony device and an element of the IP telephony system.
6 . The method of claim 1 , wherein the step of establishing the first communications channel comprises establishing the first communications channel between a first data network interface device in communication with the telephony device and a first port of an element of the IP telephony system, and wherein the step of establishing the second communications channel comprises establishing the second communications channel between a second data network interface device in communication with the telephony device and a second port of the element of the IP telephony system.
7 . The method of claim 1 , wherein the step of establishing the first communications channel comprises establishing the first communications channel between a first data network interface device in communication with the telephony device and a first element of the IP telephony system, and wherein the step of establishing the second communications channel comprises establishing the second communications channel between a second data network interface device in communication with the telephony device and a second element of the IP telephony system.
8 . The method of claim 1 , wherein the step of establishing the first communications channel comprises establishing the first communications channel between an element of the IP telephony system and a first IP address associated with the telephony device, and wherein the step of establishing the second communications channel comprises establishing the second communications channel between an element of the IP telephony system and a second IP address associated with the telephony device.
9 . The method of claim 8 , wherein the first IP address and the second IP address are both assigned to the telephony device.
10 . The method of claim 8 , wherein the first IP address is assigned to a first data network interface device in communication with the telephony device and wherein the second IP address is assigned to a second network interface device in communication with the telephony device.
11 . The method of claim 10 , wherein the first and second data network interface devices are both wireless access points.
12 . The method of claim 8 , wherein the first IP address is associated with a cellular data channel connection that is maintained by the telephony device and wherein the second IP address is associated with a second cellular data channel that is maintained by the telephony device.
13 . The method of claim 8 , wherein the first IP address is associated with a cellular data channel connection that is maintained by the telephony device, and wherein the second IP address is associated with a data network interface device that is in communication with the telephony device.
14 . The method of claim 8 , wherein the telephony device comprises a first telephony device, wherein the first IP address is associated with a first data network interface device that is in communication with the first telephony device, and wherein the second IP address is associated with at least one of a second telephony device and a data network interface device that is in communication with the second telephony device.
15 . The method of claim 8 , wherein the telephony device comprises a first telephony device, wherein the first IP address is associated with a first data network interface device that is in communication with at least one of a second telephony device and a data network interface device that is in communication with the second telephony device, and wherein the second IP address is associated with at least one of a third IP telephony device and a second data network interface device that is in communication with the third telephony device.
16 . The method of claim 1 , wherein the step of establishing the first communications channel comprises establishing the first communications channel between a first IP address associated with the telephony device and a first port of an element of the IP telephony system, and wherein the step of establishing the second communications channel comprises establishing the second communications channel between a second IP address associated with the telephony device and a second port of the element of the IP telephony system.
17 . The method of claim 1 , wherein the step of establishing the first communications channel comprises establishing the first communications channel between a first IP address associated with the telephony device and a first element of the IP telephony system, and wherein the step of establishing the second communications channel comprises establishing the second communications channel between a second IP address associated with the telephony device and a second element of the IP telephony system.
18 . The method of claim 1 , wherein the step of receiving the first sub-stream over the first communications channel comprises receiving the first sub-stream at a first bit transmission rate, and wherein the step of receiving the second sub-stream over the second communications channel comprises receiving the second sub-stream at a second bit transmission rate.
19 . The method of claim 18 , wherein the first and second bit transmission rates vary over time.
20 . The method of claim 18 , wherein the first and second bit transmission rates randomly vary over time.
21 . The method of claim 18 , wherein the first and second bit transmission rates vary over time, and wherein the first bit transmission rate varies in a different fashion than the second bit transmission rate.
22 . The method of claim 1 , further comprising combining the first and second sub-streams of data packets received from the telephony device to re-create the stream of data packets bearing the media of the telephony communication.
23 . A system for communicating data packets bearing the media of a telephony communication, comprising:
means for establishing a first communications channel between an element of an Internet protocol (IP) telephony system and a telephony device;
means for establishing a second communications channel between an element of the IP telephony system and the telephony device;
means for receiving a first sub-stream of a stream of data packets bearing the media of a telephony communication from the telephony device over the first communications channel; and
means for receiving a second sub-stream of the stream of data packets bearing the media of the telephony communication from the telephony device over the second communications channel.
24 . A system for communicating data packets bearing the media of a telephony communication, comprising:
a channel setup unit that establishes a first communications channel between an element of an Internet protocol (IP) telephony system and a telephony device and that establishes a second communications channel between an element of the IP telephony system and the telephony device; and
a receiving unit that receives a first sub-stream of a stream of data packets bearing the media of a telephony communication from the telephony device over the first communications channel and that receives a second sub-stream of the stream of data packets bearing the media of the telephony communication from the telephony device over the second communications channel.
25 . The system of claim 24 , further comprising a data stream re-combining unit that combines the first and second sub-streams of data packets received from the telephony device to re-create the stream of data packets bearing the media of the telephony communication.
26 . The system of claim 24 , wherein the receiving unit receives the first sub-stream over the first communications channel at a first bit transmission rate, and wherein the receiving unit receives the second sub-stream over the second communications channel at a second bit transmission rate.
27 . The system of claim 26 , wherein the first and second bit transmission rates vary over time.
28 . The system of claim 26 , wherein the first and second bit transmission rates randomly vary over time.
29 . The system of claim 26 , wherein the first and second bit transmission rates vary over time, and wherein the first bit transmission rate varies in a different fashion than the second bit transmission rate.