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JP2798400B2 |
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JPH10229443A |
To enable an individual to easily attach the connection limiter by building this limiter into the telephone socket of 1st telephone set to prevent the telephone calls, when a number starting at the number that starts in the sequence of n...
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JPH10190653A |
To enable an inexpensive communication. A PB signal from a telephone set 1 is received by a PB signal interface part 7 from a telephone set interface part 4. A control part 6 analyzes the PB signal and makes a choice of whether or not th...
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JP2775744B2 |
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JPH10173784A |
To eliminate the need for a muting circuit, required for a terminal equipment in the agricultural community area information system. When a caller terminal hooks off, an exchange detects it and inverts the polarity of line and sends a di...
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JP2758709B2 |
PURPOSE:To house a primary group interface into the time division multiplexer by controlling the interruption of a call originated or incoming to the line of the ISDN primary group interface directly by a control part. CONSTITUTION:In th...
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JP2757362B2 |
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JP2754981B2 |
PURPOSE: To set freely the structure of one multi-frame in the looped data transmission system. CONSTITUTION: A one-multi-frame consists of 20 STM-1 frames F(1)-F(20). rows (1-9) and time slots (1-9) of the STM-1 frame are an SOH (sectio...
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JP2754514B2 |
A line protection circuit for an ISDN device includes a pair of identical, field effect transistors (40, 42) connected between the device and opposite terminals of one winding (44) of an isolation transformer. Each device has one N regio...
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JP2751193B2 |
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JP2748755B2 |
PURPOSE: To facilitate data transfer at communication re-start by preventing sudden communication interruption during data communication when an output voltage of a battery drive power supply section is decreased to a prescribed voltage ...
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JP2740041B2 |
A universal ISDN subscriber line connection group (1) for any terminal configurations (analogue, digital terminals) with the capability of internal traffic between analogue and digital terminals is to be created. For this purpose, the IS...
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JP2739530B2 |
PURPOSE: To uniformly distribute a packet incoming call from plural terminal equipments to two B-channels in the terminal adaptor. CONSTITUTION: A call control section 18 receives an incoming packet call from an ISD network 10. Thus, the...
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JP2732157B2 |
PURPOSE:To enable normally operation of a network terminating equipment and terminal equipment even when a transmission delay exceeds a regulated value and to execute layer '1' processing by providing an interface buffer and an interface...
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JP2564740Y2 |
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JPH1013568A |
To improve the operability by detecting a caller telephone number included in an incoming call signal from a subscriber line and selecting any of telephone sets or facsimile equipments containing and connecting to subscriber lines from a...
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JP2687546B2 |
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JPH09284819A |
To conduct extension communication only by using one B-channel. An extension communication equipment 102 at a caller side uses a D-channel to make a request of use of a B-channel in an incoming or outgoing direction to a communication eq...
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JPH09275430A |
To provide a simple and economical telephone set controlling ring control of each telephone set based on a ring pattern of a call signal received from a line. This telephone set is provided with a call signal detection section detecting ...
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JP2655872B2 |
PURPOSE:To inform the busy state of a subscriber line without changing an existing interface by using a bit for controlling contention in the same interface in the basic access of an existing ISDN user network interface. CONSTITUTION:Whe...
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JP2651694B2 |
PURPOSE:To avoid charging of a talking charge to a caller when a called party is absent by adopting the constitution such that a call comes directly to the No.1 extension in the incoming call to an automatic telephone line switching devi...
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JP2647084B2 |
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JP2646604B2 |
PURPOSE:To freely select a channel, and to improve profitability by providing a means to analyze data on a control channel and detect selection information, and the means to velocity-convert a signal flowing in a subscribers line and tim...
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JP2645679B2 |
PURPOSE:To shorten a synchronism setting time between a network terminating equipment and plural terminal equipment by always setting up synchronism in a reproducing repeating section between the terminating equipment and the terminal eq...
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JP2640593B2 |
PURPOSE: To attain D-channel competition control and synchronism detection in a network terminating equipment by providing this user/network interface device between the network terminating equipment and plural terminal apparatuses, copy...
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JPH09205410A |
To provide a system capable of performing line concentration control in a subscriber transmission line section, increasing the number of subscribers housable in one subscriber transmission line and economically realizing the subscriber t...
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JP2621602B2 |
PURPOSE:To collectively store channel information after receiving input information by giving a transmission interface part transferring information in a memory capacitance at interface speed and a call control part transmitting and outp...
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JP2621592B2 |
PURPOSE:To facilitate impedance matching by adopting a multi-point system for the communication from a network terminator(NT) to a terminal equipment(TE) and adopting a point-to-point system for the communication from the TE to the NT. C...
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JP2619903B2 |
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JP2619929B2 |
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JPH09149149A |
To attain extension communication for two sets of ISDN terminal, equipments or over by attaining extension communication among terminal equipments not via an ISDN. A D channel detection control circuit 21 of a digital service unit DSU 12...
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JP2617232B2 |
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JP2617233B2 |
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JP2599845B2 |
PURPOSE: To provide the ISDN terminal equipment in which the call control is transferred to either a computer or an ISDN interface and the load of the computer is minimized to obtain the service with a high function. CONSTITUTION: In the...
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JP2590684B2 |
PURPOSE: To enable plural equipments to use a multiplexer transmission line in common in the subscriber line multiplexer for a digital communication line not having a line concentration function. CONSTITUTION: When plural terminal equipm...
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JP2584987B2 |
PURPOSE:To minimize the occurrences of rejection against incoming calls by including the representative numbers of respective kinds of matching in addition to subaddress information elements and matching information elements in a call se...
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JP2584481B2 |
PURPOSE:To enable using a subaddress properly according to plural uses at an incoming terminal side by providing a subaddress selecting means and an incoming deciding means to decide the propriety of an incoming call. CONSTITUTION:At eac...
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JP2576677B2 |
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JP2575169B2 |
A facsimile apparatus connected on an ISDN side in a communication network in which the ISDN is connected to a telephone network includes network identifying means (4) for identifying whether an incoming data sending party is an ISDN ter...
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JP2573242B2 |
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JP2575145B2 |
PURPOSE:To rapidly execute the analysis of a cause of a communication failure by providing a status counter that shows the status of a circuit, storing an output from this status counter with hysteresis intact, and monitoring a status co...
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JPH0923463A |
To unnecessitate the pick-up of a telephone receiver by means of one of users by continuously calling the name of a callee as the calling sound of respective telephone sets in a branch telephone set where plural telephone sets are connec...
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JP2551061B2 |
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JP2550937B2 |
The ISDN user-network interface is defined in the CCITT D-channel protocol recommendation (I-400 series recommendations), in which many kinds of communication terminals (e.g. faximile, telephone, teletex, etc.) can communicate through a ...
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JP2543168B2 |
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JPH08251294A |
PURPOSE: To control the broadcast areas for every terminal in a party wire broadcast telephone system. CONSTITUTION: A wire broadcast telephone exchange 102 inverts the line voltage for a fixed time when the broadcast starts and transmit...
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JP2531242B2 |
An ISDN network termination unit for connecting a user's bus line connected to a plurality of terminal equipments and a subscriber line extending from an exchanging office receives and transmits a D channel signal from one of the exchang...
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JP2526694B2 |
PURPOSE:To output and display a fact that the discordance between an outgoing terminal address and a data terminal address is decided by an address comparator means by informing a terminal address control means of said fact. CONSTITUTION...
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JP2513249B2 |
PURPOSE:To incorporate a general ISDN terminal equipment and a high function terminal by assigning plural overall service digital networks (ISDN) terminal numbers to one subscriber allocation position and storing in advance subscriber in...
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JP2509307B2 |
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