Interface for facilitating facsimile transmissions via wireless communications networks
An interface for facilitating facsimile transmission via a wireless communications device operatively connected to a wireless communications network, including: a modem suitable for being communicatively coupled to a facsimile machine; a controller coupled to the modem; and, a memory operatively coupled to the controller. The interface includes code to cause the modem to transmit a retrain request to the facsimile machine upon expiration of a given temporal period. The interface includes a circuit for selectively generating a ring signal corresponding to a plain old telephone service ring signal. The interface includes a circuit for selectively generating a hold signal corresponding to a plain old telephone service hold signal. And, the circuit includes code to cause the modem to transmit data indicative of white lines to the facsimile machine upon expiration of a given temporal period.
1. An interface for facilitating facsimile transmission via a wireless communications device operatively connected to a wireless communications network, said interface comprising:
a modem suitable for being communicatively coupled to a facsimile machine;
a controller coupled to said modem;
a memory operatively coupled to said controller; and,
code being stored in said memory and operable by said controller to cause said modem to transmit a retrain request to said facsimile machine upon expiration of a given temporal period.
2. The interface of claim 1 , wherein said temporal period is less than a transmission timeout period of said facsimile machine.
3. The interface of claim 1 , wherein said temporal period initiates after a handshake between said modem and said facsimile machine.
4. The interface of claim 1 , wherein said temporal period is about 30 seconds.
5. The interface of claim 1 , wherein said temporal period is less than a reception timeout period of said facsimile machine.
6. The interface of claim 1 , wherein said temporal period initiates after a handshake between said modem and said facsimile machine.
7. The interface of claim 1 , wherein said temporal period is about 30 seconds.
8. An interface for facilitating facsimile reception via a wireless communications device being suitable for communicating via a wireless communications network, said interface comprising:
a modem suitable for being operatively coupled to and communicating with a facsimile machine;
a circuit for selectively generating a ring signal corresponding to a plain old telephone service ring signal, and being suitable for being operatively coupled to and communicating with said facsimile machine;
a controller coupled to said modem and circuit;
a memory being operatively coupled to said controller; and,
code being stored in said memory and operable by said controller to cause said circuit to generate and transmit said ring signal corresponding to a plain old telephone service ring signal to said facsimile machine upon detecting a signal indicative of said wireless communications device receiving a call.
9. The interface of claim 8 , wherein said signal indicative of said wireless communications device receiving a call corresponds to a given data word.
10. The interface of claim 8 , wherein said wireless communications device is selected from the group consisting of a cellular phone and a satellite phone.
11. The interface of claim 8 , wherein said ring signal is a 20 Hz 50 VRMS AC signal.
12. The interface of claim 8 , wherein said circuit comprises a non-bootstrapped pulse-width modulating, current-mode DC-DC controller.
13. The interface of claim 8 , wherein said circuit comprises a transistor having a gate coupled through a resistance and diode to a power source.
14. An interface for facilitating facsimile reception via a wireless communications device being suitable for communicating via a wireless communications network, said interface comprising:
a modem suitable for being operatively coupled to and communicating with a facsimile machine;
a circuit for selectively generating a ring signal corresponding to a plain old telephone service hold signal, and being suitable for being operatively coupled to and communicating with said facsimile machine;
a controller coupled to said modem and circuit;
a memory being operatively coupled to said controller; and,
code being stored in said memory and operable by said controller to cause said circuit to generate and transmit said ring signal corresponding to a plain old telephone service hold signal to said facsimile machine upon expiration of a given temporal period.
15. The interface of claim 14 , wherein said temporal period corresponds to the transmission timeout period of said facsimile machine.
16. The interface of claim 14 , wherein said wireless communications device is selected from the group consisting of a cellular phone and a satellite phone.
17. The interface of claim 14 , wherein said ring signal is a DC current signal.
18. An interface for facilitating facsimile reception via a wireless communications device being suitable for communicating via a wireless communications network, said interface comprising:
a modem suitable for being operatively coupled to and communicating with a facsimile machine;
a controller coupled to said modem;
a memory being operatively coupled to said controller; and,
code being stored in said memory and operable by said controller to cause said modem to transmit data indicative of white lines to said facsimile machine upon expiration of a given temporal period.