A fax server connected to a plurality of client PCs and user LAN, forming a client-server system. It is also connected via an ISDN or PSTN line to a fax server of another communication network. A communication activity record which matches a reception record of receipt confirmation from a recipient with a transmission record of the transmitted document is generated and displayed on the screen of a display unit. This communication activity record can be output from printer, or displayed as printe...

A calling party announcement apparatus and method for providing the identity of the caller in a non-synthesized, pre-recorded human speech. The invention detects and decodes the Incoming Caller Line Identification (ICLID) signal between ring signals before the called party answers the phone and announces the calling party's name and/or phone number. The called party answers the telephone or rejects the call before the receiver goes off-hook. Additionally, if the called party elects to accept the...

The present invention is an ADSI download system. The system 10 has one or more ADSI telephones 12, a telephone network 14, a network application server 16, a download request database file 9, and one or more remote sites 18 located on the WWW or on a proprietary network, such as America On Line or Prodigy. The computer network site location 18 contains an ADSI mergable file 19 that includes information such as local weather, stock quotes, news, announcements or advertisements. In response to a ...

In a telephone network supporting local number portability, a system and method for assigning a location identifier uses a location routing number to identify the geographic location of a customer. A local carrier assigns a telephone number to a customer. The local carrier then assigns a location routing number to the telephone number. A first portion of the location routing number represents routing information and a second portion represents the location of the customer. The second portion may...

A method for enhancing the stability associated with an individual telecommunications line interface circuit comprises measuring a phase angle between a battery voltage and an output voltage. The phase angle measurement is processed by a digital signal processor for synthesizing a comparator circuit to generate an output voltage if the phase angle is a value other than forty-five degrees (45.degree.). The new output voltage is then applied to the line interface circuit and the phase angle is rec...

An echo canceller circuit for use in an echo canceller system is set forth. The echo canceller circuit comprises a first digital filter having non-adaptive tap coefficients to simulate an echo response occurring during a call. A second digital filter having adaptive tap coefficients to simulate an echo response occurring during the call is also used. The adaptive tap coefficients of the second digital filter are updated over the duration of the call. A coefficient transfer controller is disposed...

A method for transferring dual tone multifrequency (DTMF) signals in real time in a computer communications system for performing a telephone call via a modem. In the method, virtual connection with the modem is performed before a user inputs a connection number, wherein the modem is regarded as the external device to be connected. Then, when the virtual connection is achieved, a dual tone multifrequency (DTMF) signal corresponding to a number is transferred in real time through the modem whenev...

A store and forward facsimile function is incorporated into a standalone telephone answering machine. The facsimile function automatically interfaces with all PC facsimile application software to retrieve data representing fixed graphic material, the facsimile messages, stored in the memory of the telephone answering machine. Flash memory storage of the telephone answering machine is used to store the received facsimile messages. A facsimile LED on the unit blinks to indicate the number of facsi...

The present invention is embodied in a system and method for protecting an electronic device connected to a telephone line. The system includes a detector, sensor and protector. The detector determines a resistance built-in to the telephone line, the sensor utilizes the resistance of the telephone line to determine if the telephone line is a digital line and the protector prevents the electronic device from prolonged connection with the telephone line if it is a digital line.

A power management circuit for use in a terminal interface device such as a modem which converts available power from a terminal or host device such as a computer into usable standby power for use when the terminal interface device is non-operational. The power management circuit is additionally comprised of a voltage regulator which, when a terminal interface device becomes operational, is enabled and regulates available voltage and current into usable power as available from the interfacing co...