Facsimile store and forward system with local interface translating DTMF signals into store and forward system commands
First Claim
1. A facsimile communication method utilizing an interface device coupled to a local facsimile machine through a first telephone line and selectively coupled to a remotely located facsimile store and forward facility through a second telephone line and a public switched telephone network, the method comprising steps of:
- receiving dual tone multi-frequency (DTMF) signals at the interface device generated by the local facsimile machine in response to user input;
translating the DTMF signals received at the interface device from the local facsimile machine into at least one facility command of a plurality of available facility commands for the remotely located facsimile store and forward facility;
calling the remotely located facsimile store and forward facility from the interface device over the second telephone line to establish a connection between the interface device and the remotely located facsimile store and forward facility;
transmitting the facility command from the interface device over the second telephone line and through the public switched telephone network to the remotely located facsimile store and forward facility;
receiving the facility command at the remotely located facsimile store and forward facility;
analyzing the facility command at the remotely located facsimile store and forward facility to identify the facility command among the plurality of available facility commands;
generating an interface connect/hold command at the remotely located facsimile store and forward facility;
transmitting the interface connect/hold command through the public switched telephone network and the second telephone line to the interface device;
receiving the interface connect/hold command at the interface device;
connecting the first telephone line to the second telephone line at the interface device;
monitoring the local facsimile machine from the remotely located facsimile store and forward facility for facsimile machine tones;
receiving facsimile information from the local facsimile machine at the remotely located facsimile store and forward facility;
monitoring the connected second telephone line at the interface device for concluding handshaking signals;
supplying load from the interface device to the second telephone line in response to detecting the concluding handshaking signals to maintain the connection between the interface device and the remotely located facsimile store and forward facility as the local facsimile machine hangs up the first telephone line; and
hanging up the second telephone line at the interface device.
22 Assignments
0 Petitions
Accused Products
Abstract
A local router interface couples a conventional facsimile device to the public switched telephone network (PSTN) to communicate with a remotely located facsimile store and forward facility (F-SAFF) to perform a host of improved facsimile service methods, including a never no answer or busy send (NNABS) method, a never no answer receive (NNAR) method, a private facsimile method, a will call facsimile method, a pager facsimile method, a facsimile mail method, a facsimile information retrieve method, a facsimile information send method, a facsimile cover method, a facsimile speed cover method, a facsimile broadcast method, a facsimile flexible broadcast method, a facsimile access restriction method, a facsimile conversion method, an urgent facsimile method, and a facsimile addition method. Innocuous call progress monitoring with fast busy detection, post-fax line holding, F-SAFF-to-remote and remote-to-F-SAFF bridging are provided. The router includes detectors for loop-current, ring signals, call progress signals, precise busy signals, dual tone multi-frequency (DTMF) signals, and modulated data signals, as well as generators for going off-hook, generating and transmitting DTMF signals and modulated data signals over a wall phone line as well as ring and dial tone signals through an adjustable amplifier circuit and a subscriber line interface circuit to a fax telephone line. A switching connection circuit is also included for selectively connecting the wall phone line to the fax phone line and for selectively connecting other components of the telephony interface thereto.
-
Citations
41 Claims
-
1. A facsimile communication method utilizing an interface device coupled to a local facsimile machine through a first telephone line and selectively coupled to a remotely located facsimile store and forward facility through a second telephone line and a public switched telephone network, the method comprising steps of:
-
receiving dual tone multi-frequency (DTMF) signals at the interface device generated by the local facsimile machine in response to user input; translating the DTMF signals received at the interface device from the local facsimile machine into at least one facility command of a plurality of available facility commands for the remotely located facsimile store and forward facility; calling the remotely located facsimile store and forward facility from the interface device over the second telephone line to establish a connection between the interface device and the remotely located facsimile store and forward facility; transmitting the facility command from the interface device over the second telephone line and through the public switched telephone network to the remotely located facsimile store and forward facility; receiving the facility command at the remotely located facsimile store and forward facility; analyzing the facility command at the remotely located facsimile store and forward facility to identify the facility command among the plurality of available facility commands; generating an interface connect/hold command at the remotely located facsimile store and forward facility; transmitting the interface connect/hold command through the public switched telephone network and the second telephone line to the interface device; receiving the interface connect/hold command at the interface device; connecting the first telephone line to the second telephone line at the interface device; monitoring the local facsimile machine from the remotely located facsimile store and forward facility for facsimile machine tones; receiving facsimile information from the local facsimile machine at the remotely located facsimile store and forward facility; monitoring the connected second telephone line at the interface device for concluding handshaking signals; supplying load from the interface device to the second telephone line in response to detecting the concluding handshaking signals to maintain the connection between the interface device and the remotely located facsimile store and forward facility as the local facsimile machine hangs up the first telephone line; and hanging up the second telephone line at the interface device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
-
-
36. A facsimile communication method utilizing an interface device coupled to a local facsimile machine through a first telephone line and selectively coupled to a remotely located facsimile store and forward facility through a second telephone line and a public switched telephone network, the method comprising steps of:
-
receiving user-generated dual tone multi-frequency (DTMF) signals at the interface device, wherein the DTMF signals received by the interface device correspond to a request to communicate facsimile information to a remotely located destination facsimile machine identified by a destination telephone number regardless of initial availability of the remotely located destination facsimile machine; translating the DTMF signals at the interface device into at least one facility command of a plurality of available facility commands for the remotely located facsimile store and forward facility; dialing the destination telephone number over the second telephone line from the interface device; connecting the first telephone line to the second telephone line at the interface device; monitoring the connected second telephone line at the interface device for call progress signals; disconnecting the second telephone line from the first telephone line to hang-up the second telephone line in response to any result other than a timely answer on the second telephone line; supplying telephone line power from the interface device only to the first telephone line in quick response to disconnection of the second telephone line; calling the remotely located facsimile store and forward facility from the interface device over the second telephone line; transmitting the facility command from the interface device to the remotely located facsimile store and forward facility; receiving the facility command at the remotely located facsimile store and forward facility; analyzing the facility command at the remotely located facsimile store and forward facility to identify the facility command among the plurality of available facility commands; and executing the facility command to complete the facsimile communication method.
-
-
37. A facsimile communication method utilizing an interface device coupled to a local facsimile machine through a first telephone line and selectively coupled to a remotely located facsimile store and forward facility through a second telephone line and a public switched telephone network, the method comprising steps of:
-
receiving user-generated dual tone multi-frequency (DTMF) signals at the interface device, wherein the DTMF signals received by the interface device correspond to a request to communicate facsimile information to a remotely located destination facsimile machine identified by a destination telephone number regardless of initial availability of the remotely located destination facsimile machine; translating the DTMF signals at the interface device into at least one facility command of a plurality of available facility commands for the remotely located facsimile store and forward facility; calling the remotely located facsimile store and forward facility from the interface device over the second telephone line; transmitting the facility command from the interface device to the remotely located facsimile store and forward facility; receiving the facility command at the remotely located facsimile store and forward facility; analyzing the facility command at the remotely located facsimile store and forward facility to identify the facility command among the plurality of available facility commands; and executing the facility command to complete the facsimile communication method, wherein the executing step includes; generating a connect/hold command at the remotely located facsimile store and forward facility; transmitting the connect/hold command to the interface device; receiving the connect/hold command at the interface device;
connecting the first telephone line to the second telephone line at the interface device;receiving facsimile information from the local facsimile machine at the remotely located facsimile store and forward facility; storing the facsimile information at the remotely located facsimile store and forward facility; monitoring the connected second telephone line at the interface device for concluding handshaking signals; and supplying load from the interface device to the second telephone line in response to detecting the concluding handshaking signals. - View Dependent Claims (38, 39, 40)
-
-
41. A facsimile communication method utilizing an interface device coupled to a local facsimile machine through a first telephone line and selectively coupled to a remotely located facsimile store and forward facility through a second telephone line and a public switched telephone network, the method comprising steps of:
-
receiving user-generated dual tone multi-frequency (DTMF) signals at the interface device, wherein the DTMF signals received by the interface device correspond to a request to communicate facsimile information to a remotely located destination facsimile machine identified by a destination telephone number regardless of initial availability of the remotely located destination facsimile machine; translating the DTMF signals at the interface device into at least one facility command of a plurality of available facility commands for the remotely located facsimile store and forward facility; calling the remotely located facsimile store and forward facility from the interface device over the second telephone line; transmitting the facility command from the interface device to the remotely located facsimile store and forward facility; receiving the facility command at the remotely located facsimile store and forward facility; analyzing the facility command at the remotely located facsimile store and forward facility to identify the facility command among the plurality of available facility commands; and executing the facility command to complete the facsimile communication method, wherein the executing step includes; receiving facsimile information at the remotely located facsimile store and forward facility through interface device; storing the facsimile information at the remotely located facsimile store and forward facility; commanding the interface device from the remotely located facsimile store and forward facility to dial the destination telephone number to establish a connection on the second telephone line between the interface device and the remotely located destination facsimile machine; instructing the public switched telephone network from the interface device to suspend the connection between the interface device and the remotely located facsimile store and forward facility on the second telephone line; dialing the destination telephone number over the second telephone line from the interface device to establish the connection on the second telephone line between the interface device and a remotely located destination facsimile machine; instructing the public switched telephone network from the interface device to connect the remotely located facsimile store and forward facility to the remotely located destination facsimile machine; transmitting facsimile information stored at the remotely located facsimile store and forward facility to the remotely located destination facsimile machine.
-
Specification