Method of monitoring a data transmission

• US 6,075,849 A
• Filed: 05/17/1996
• Issued: 06/13/2000
• Est. Priority Date: 05/17/1996
• Status: Expired due to Term

• Current Assignee: Dialogic Networks (Israel) Ltd. (Dialogic, Inc. (United Arab Emirates))
• Original Assignee: NKO, Inc. (MegaHertz Communications Corp)
• Inventors: Platteter, Dale T., Copp, David W., Carrier, Neil P., Lee, Warren S.
• Primary Examiner(s): LOOMIS, PAUL A
• Application Number:
  US08/649,202
• Time in Patent Office: 1,488 Days
• Field of Search: 379/1, 379/34, 379/111, 379/112, 379/113, 379/140, 379/141, 379/100.01, 379/100.02, 379/100.03, 379/100.05, 379/133, 379/188, 379/189, 379/199, 379/200 , 379/194, 379/195, 379/352, 379/373, 379/372
• US Class Current: 379/140
• CPC Class Codes: H04N 1/00002 Diagnosis, testing or measuring; Detecting, analysing or monitoring not otherwise provided for error detection, error correction or monitoring in digital computers or digital computer components G06F11/00
• CPC Class Codes: H04N 1/0001 Transmission systems or arrangements
• CPC Class Codes: H04N 1/00037 Detecting, i.e. determining the occurrence of a predetermined state H04N1/00031 takes precedence
• CPC Class Codes: H04N 1/32782 using a tone- or pulse-coded request
• CPC Class Codes: H04N 1/32797 Systems adapted to communicate over more than one channel, e.g. via ISDN changing transmission mode according to type of channel H04N2201/33364; multichannel or multilink communication protocols H04L69/14

Abstract

A method of monitoring a data transmission transmitted over a telephone line includes the first step of determining if a data transmission is incoming or outgoing over a telephone line. In the second method step, a modem is configured to monitor a receive portion of the telephone line if the first step determines that the transmission is outgoing. The modem is configured to monitor a transmit portion of the telephone line if the first step determines that the transmission is incoming. In the third method step, a data signal is detected from the data transmission. The method may include the further step of maintaining statistics corresponding to the data signal. The data transmission may be a facsimile transmission. The data signal may be any one of a DCS signal, an MCF signal, and an RTP signal.

Claims

1. A method of monitoring a data transmission transmitted from a facsimile machine connected to a facsimile jack, the facsimile jack being connected to a telephone line for outputting the data transmission over the telephone line, the method comprising the steps of:

(a) determining if said data transmission is incoming or outgoing with respect to said facsimile machine;

(b) establishing a first connection between said telephone line and said facsimile machine by allowing said data transmission to pass through said facsimile jack unaltered, if step (a) determines said data transmission is incoming; and

(c) establishing a second connection between said telephone line and said facsimile machine, wherein said facsimile jack intercepts and reads a portion of said data transmission if step (a) determines that said data transmission is outgoing,

wherein the second connection is established in step c) by one of;

i) providing DTMF digits indicative of a destination device that are received from said facsimile machine through said telephone line to set up said second connection to be sent entirely over a public switched telephone network, and ii) providing alternative DTMF digits instead of said DTMF digits indicative of the destination device to said telephone line to set up said second connection over a packet switched digital network via a first point of presence that provides an interface between the packet switched digital network and the public switched telephone network, the alternative DTMF digits corresponding to a phone number of the first point of presence, and

wherein said alternative DTMF digits are provided to said telephone line instead of said DTMF digits received from said facsimile machine when said facsimile jack determines that said data transmission is capable of being sent over said packet switched digital network.

2. The method as recited in claim 1, further comprising the step of:

(d) maintaining statistics corresponding to said data transmission.

3. The method as recited in claim 1, wherein said data transmission is one of a facsimile data transmission, a voice data transmission, and a modem data transmission.

4. The method as recited in claim 1, wherein the portion of said data transmission that is intercepted and read in step (c) are one of DTMF digits and pulses corresponding to a telephone number of a destination facsimile machine.

5. The method as recited in claim 1, further comprising the step of:

(d) monitoring said data transmission for a telephone number dialed from said facsimile machine;

(e) if step (d) determines that the telephone number has been dialed, routing said data transmission to one of a first network and a second network based on the dialed telephone number.

6. The method as recited in claim 5, wherein the dialed telephone number is intercepted by the facsimile jack and converted to another telephone number that is sent out over the telephone line if both:

i) step (a) determines said data transmission is outgoing and, ii) step (e) determines that the telephone number has been dialed and corresponds to the destination device which is capable of receiving the data transmission from a second point of presence via the public switched telephone network,

wherein the another telephone number corresponds to a telephone number of the first point of presence, the first point of presence receiving the data transmission from the facsimile jack via a first local telephone call over the public switched telephone network and routing the data transmission to the second point of presence over the packet switched digital network, the second point of presence routing the data transmission via a second local telephone call over the public switched digital network to the destination device.

7. A method of providing for transmission of data from a facsimile machine to a telephone line, wherein a facsimile jack is connected between the facsimile machine and the telephone line, the method comprising the steps of:

(a) determining if an outgoing call is being made from said facsimile machine;

(b) connecting a receive portion of the telephone line and a transmit portion of the telephone line to the facsimile jack;

(c) connecting the receive portion of the telephone line to a receive port of the facsimile machine;

(d) detecting, by both the facsimile jack and the facsimile machine, a dial tone on the receive portion of the telephone line;

(e) connecting a transmit port of the facsimile machine to the facsimile jack, and not to the transmit portion of the telephone line, and connecting a transmit port of the facsimile jack to the transmit portion of the telephone line,

wherein the dial tone is capable of being received by the facsimile machine at all times when the facsimile machine is off-hook and a call connection to a destination facsimile machine has not been established as yet, and

wherein a telephone number corresponding to the destination facsimile machine that is transmitted through the transmit port of the facsimile machine is intercepted by the facsimile jack and not transmitted over the transmit portion of the telephone line when the outgoing call is determined by the facsimile jack to be capable of being sent over a first network to the destination facsimile machine, and

wherein said any DTMF digits corresponding to the destination facsimile machine are intercepted and read by the facsimile jack and are transmitted over the transmit portion of the telephone line when the outgoing call is determined by the facsimile jack to not be capable of being sent over the first network to the destination facsimile machine.

8. The method as recited in claim 7, wherein, based on the interception of the telephone number corresponding to one of DTMF digits and pulses by the facsimile jack, the transmission of data is sent over one of the telephone line of a standard telephone network and another line of an alternate network.