System for and method of detecting a connection of a text telephony (TTY) device to a mobile phone

1. A method of detecting a connection of a text telephony (TTY) device to a communication device, the method comprising:

receiving a physical connection with a cable coupling the TTY device and the communication device, the TTY device providing text entry and text display and enabling communication on a communication network, the communication device communicating with the communication network and including input/output connection ports, the cable being a smart cable and including a processor;

automatically detecting the physical connection at the communication device based on said smart cable;

in response to the detection of the physical connection, communicating a TTY bearer bit to the communication network; and

decoding and encoding TTY signals in the smart cable.

2. The method of claim 1 , wherein the communication network is a wireless network and the communication device is a mobile communication device.

3. The method of claim 1 , wherein the communication network is a digital network.

4. The method of claim 1 , wherein the step of automatically detecting the physical connection at the communication device includes detecting whether a voltage on input/output connector pins of the communication device changes, the voltage changes being due to a voltage change provided by said smart cable.

5. The method of claim 1 , wherein the step of automatically detecting the physical connection at the communication device includes detecting a resistor value in an input/output connector of the communication device, to thereby recognize said smart cable.

6. The method of claim 1 , wherein the communication device comprises a mobile phone.

7. The method of claim 6 , wherein the mobile phone includes an integrated text telephony/cell transfer matrix (TTY/CTM) encoder/decoder.

8. The method of claim 1 , wherein the cable includes an integrated text telephony/cell transfer matrix (TTY/CTM) encoder/decoder.

9. The method of claim 1 , wherein the physical connection with the cable includes a 2.5 mm connector.

10. A method of detecting a connection of a text telephony (TTY) device to a communication device, the method comprising:

receiving a physical connection with a cable coupling the TTY device and the communication device, the TTY device providing text entry and text display and enabling communication on a communication network, the communication device communicating with the communication network and including input/output connection ports;

automatically detecting the physical connection at the communication device, wherein the step of automatically detecting the physical connection at the communication device includes communicating a signal from the communication device to the cable and receiving a response signal from the cable at the communication device, the cable including a processor;

in response to detection of the physical connection, communicating a TTY bearer bit to the communication network; and

decoding and encoding TTY signals in the cable.

11. A system for detecting a connection of a text telephony (TTY) device to a mobile device, the system comprising:

a mobile device that communicates with a wireless network, the mobile device including input/output connection ports;

a TTY device that provides text entry and text display and enables communication on the wireless network; and

a connection coupling the mobile device and the TTY device, wherein the connection includes a processor therein and is configured to decode and encode TTY signals, and the connection dynamically enables the communication of a TTY bearer bit by the mobile device to the wireless network, enabling TTY communications among the mobile device, TTY device, and the wireless network.

12. The system of claim 11 , wherein the mobile device comprises a telephone.

13. The system of claim 12 , wherein the telephone includes an integrated text telephony/cell transfer matrix (TTY/CTM) encoder/decoder.

14. The system of claim 11 , wherein the connection coupling the mobile device and the TTY device is a smart cable including a TTY decoder, a cell transfer matrix (CTM) encoder, a CTM decoder, and a TTY encoder.

15. A system for detecting a connection of a text telephony (TTY) device to a mobile device, the system comprising:

a mobile device that communicates with a wireless network, the mobile device including input/output connection ports;

a TTY device that provides text entry and text display and enables communication on the wireless network; and

a connection coupling the mobile device and the TTY device, wherein the connection is configured to decode and encode TTY signals and dynamically enables the communication of a TTY bearer bit by the mobile device to the wireless network, enabling TTY communications among the mobile device, TTY device, and the wireless network;

wherein the connection dynamically enables the communication of the TTY bearer bit by sending a response signal to the mobile device upon receipt of a query signal from the mobile device.

16. A system for detecting a connection of a text telephony (TTY) device to a mobile device, the system comprising:

a mobile device that communicates with a wireless network, the mobile device including input/output connection ports;

a TTY device that provides text entry and text display and enables communication on the wireless network; and

a connection coupling the mobile device and the TTY device, wherein the connection is configured to decode and encode TTY signals and dynamically enables the communication of a TTY bearer bit by the mobile device to the wireless network, enabling TTY communications among the mobile device, TTY device, and the wireless network;

wherein the connection dynamically enables the communication of the TTY bearer bit by changing the voltage on input/output connector pins of the mobile device.

17. A system for detecting a connection of a text telephony (TTY) device to a communication device, the system comprising:

a cable configured to decode and encode TTY signals;

means for receiving a physical connection with the cable coupling the TTY device and the communication device, the TTY device providing text entry and text display and enabling communication on a communication network, the communication device communicating with the communication network and including input/output connection ports;

means for automatically detecting the physical connection at the communication device based on an indication provided by circuitry of said cable; and

means for communicating a TTY bearer bit to the communication network.

18. The system of claim 17 , wherein the communication device includes a mobile phone.

19. The system of claim 18 , wherein the mobile phone includes an integrated text telephony/cell transfer matrix (TTY/CTM) encoder/decoder.

20. The system of claim 17 , wherein the means for automatically detecting the physical connection at the communication device includes means for detecting whether a voltage on input/output connector pins of the communication device changes.

21. A system for detecting a connection of a text telephony (TTY) device to a communication device, the system comprising:

a cable configured to decode and encode TTY signals;

means for receiving a physical connection with the cable coupling the TTY device and the communication device, the TTY device providing text entry and text display and enabling communication on a communication network, the communication device communicating with the communication network and including input/output connection ports;

means for automatically detecting the physical connection at the communication device; and

means for communicating a TTY hearer bit to the communication network;

wherein the means for automatically detecting the physical connection at the communication device includes means for communicating a signal from the communication device to the cable and receiving a response signal from the cable at the communication device, the cable including a processor.