JPH0451761A - Call control method for electronic telephone directory - Google Patents

Abstract

PURPOSE:To improve the processing performance in automatic dial processing by sending a parameter request command in either a command format of a character synchronizing form or of a frame synchronizing form to a network controller and discriminating a command format with a dip switch based on the result of reply. CONSTITUTION:Prior to the automatic dial processing, a dial number is stored separately in work areas depending on two command formats of character synchronizing form and frame synchronizing form (S5). Then a parameter request command is publicated in the character synchronizing form (S6). The setting state of the command format by a dip switch of a network controller is discriminated from the result of reply (S7). When an interrupt of reception data read enable takes place, the automatic dial processing is implemented in the character synchronizing form (S8) and when the interrupt does not take place, the automatic dial processing is implemented in the frame synchronizing form (S9). Thus, the processing performance of a device such as an intelligent MODEM is improved.

Description

[Detailed Description of the Invention] Field of Industrial Application] The present invention relates to a call control method for an electronic telephone directory that is installed in an intelligent modem used for personal computer communication, etc. to enable automatic dialing. , C.C.I.T.
In an intelligent modem with a built-in CUCfI control device that complies with the V.25bis standard recommended by the International Telegraph and Telephone Advisory Committee, an electronic device that performs automatic dialing using an automatic dialing procedure that complies with the V.25bis standard. This invention relates to an improvement in a telephone directory call control method.

[Prior Art] The CCITT Recommendation V, 25bis standard recognizes two synchronization formats, a character synchronization format and a frame synchronization format, as command formats during automatic dialing.

Therefore, in conventional NCUs (network control units) that comply with the above-mentioned Recommendation 'V, 25bis standards, the command format must be set using the dip switch attached to the device so that it can support either command format. It was designed to be switchable.

However, conventional communication software for performing predetermined operations such as the NCUj two-line connection operation is produced in accordance with one of the command formats.

To give a specific example, for example, emulator-based communication software uses a frame synchronization command format.

In addition, the JCA established by the Japan Chain Store Association
The TCA-based communication software (JCA package), which transfers files according to procedures, and the Gold and Silver Thread communication software, which is compliant with the JBA PC communication protocol, both use a character synchronization command format.

Therefore, in the past, once the communication software to be used was determined, the NCU's dip switch was set in accordance with the command format (synchronization format) of the communication software.

[Problem to be Solved by the Invention J] However, the conventional method of setting the command format of the NCU according to the communication software used has the following problems.

In other words, each time the communication software used is changed, the operator must check whether the command format set in the NCU matches the command format of the communication software. This is a heavy mental burden, and if the command formats do not match, the operator must manually operate the NCU's dip switch to match the command formats. This results in poor handling from the user's point of view.

Moreover, the command format does not match the UI
For example, if the command format of the communication software is frame synchronous, but the command format setting of the NCU's dip switch is set to character synchronous, automatic dialing may occur. Not only is this not possible, but there is no response from the NCU side, resulting in a state in which it is impossible to proceed to the next process (hang-up state), resulting in wasted processing time.

The present invention has been made in view of the above circumstances, and is based on the CCI
In an intelligent modem with a built-in NCU based on the TT Recommendation V, 25bis standard, the
This is a call control method for an electronic telephone directory that executes automatic dialing processing using an automatic dialing procedure that complies with the BIS standard, and includes operations for checking whether the command format matches between the communication software used and the NCU, and for making the commands and formats match. This eliminates the need to change settings on dip switches, improving ease of use when performing automatic dial processing, and also prevents hang-ups due to mismatched command formats. The purpose of this invention is to provide a call control method for an electronic telephone directory that can be used.

[Means for Solving the Problems] The electronic telephone directory call control method according to the present invention is based on the CCITT Recommendation V.25bis standard, and uses an intelligent modem with a built-in NCU to perform automatic dialing in accordance with the V.25bis standard. This procedure executes automatic dialing processing.

Specifically, to explain the characteristics of the process, when executing the automatic dialing process, a parameter request command is sent to the NCU in advance in either a character synchronization format or a frame synchronization format command format. , determines the command format set in the NCU by the DIP switch, based on the response result from the NCU to the command.

Then, call processing is executed using the determined command format.

[Function] In the electronic telephone directory call control method according to the present invention, when executing automatic dialing processing, a parameter request command is sent to the NCU in advance, and the NC
Based on the response result from U, the command format set in the NCU by the dip switch is determined.

Then, since the call processing is executed using the determined command format, there will be no command format mismatch during the call processing, and the command format will match between the communication software used and the NCU. At the very least, the automatic dialing process can be reliably executed using an automatic dialing procedure that complies with CCITT Recommendation V and the 25bis standard.

Therefore, there is no need to change the setting of a dip switch to match the command format between the communication software used and the NCU, improving the handling of devices such as intelligent modems. It is also possible to prevent the occurrence of a downloading phenomenon caused by a mismatch in command file formats.

Furthermore, by the call control method of the present invention, CCITT Recommendation V
Since it is possible to support both command formats specified in the . It is expected that compatibility will be improved.

[Example] An embodiment of the present invention will be described below.

FIG. 2 shows the system configuration of a terminal system that performs automatic dialing processing according to an embodiment of the present invention.

In this system, a display 2, a keyboard 3, a communication board 4, etc. are connected to a personal computer 1 which forms the core of the system, and a communication line (telephone line etc.) 5 is connected to the communication board 4. A telephone 6 is connected thereto.

In the case of this embodiment, the personal computer main body 1 is assumed to be the main body of 1f386AX, which is an AX personal computer manufactured by Oki Electric Industry Co., Ltd.

The 1f386AX is a laptop type personal computer, as shown in FIGS. 3 and 4, and has a configuration in which a display 2 and a keyboard 3 are attached to the personal computer main body l.

The communication board 4 is a so-called intelligent modem, and although not shown, it includes a controller that supports serial data communication and a CCITT recommendation V.
, a modem (modulator/demodulator) compliant with the .26bis standard,
CC, ITT Recommendation V.

NCU (network control unit) compliant with 25b is standard
and battery backup memory (expansion BIO8RA
M) and a battery for retaining the contents (programs and data) of the battery backup memory (
battery).

This communication board 4 is connected to the 1f
This is optionally installed on the 386AX main body.As shown in Figure 3, it is inserted into the 110 slot la located on the left side of the 1f386AX main body, and the 8-pole to 8-pole connection cord is used to connect the main body 1 and board 4. It is operated in an interconnected manner.

As shown in FIG. 5, the bracket portion 4a on the back side of the communication board 4 has a dip switch SW4 for setting the command e format of the NCU, and a connector C for connecting a communication line (telephone line).
1 and a connector C2 for connecting a telephone are provided facing the outside.

The DIP switch SW4 of the NCU consists of four switches S1 to S4, as shown in FIG. When the switch S3 is turned on, the 1f frame synchronization format is set, and when the switch S3 is turned off, the character synchronization format is set. An electronic telephone directory according to an embodiment of the present invention stores a call processing program and dialing data (telephone number information) of a called party on a battery backup memory installed in the communication board 4, C
Automatic dialing is performed using an automatic dialing procedure that complies with CITT Recommendation V and 25bis standards.

This electronic telephone directory is also equipped with a telephone directory display function for displaying a list of telephone numbers of call destinations on the display 2.

In general, the call control method in the electronic telephone directory of this embodiment is such that when the "Place key" provided on the keyboard 3 is pressed, the telephone number of the called party is displayed on the display 2; The details are as shown in the flowchart of FIG. 1.

That is, before performing the automatic dialing process, it is first checked whether the communication board 4 is in use (communicating) or not.
DR (data set ready), one of the control signals
The determination is made by sensing the signal (step Sl).

If it is in use, a return code is set (step S2) and the process returns to the upper level.

If the board 4 is not in use but can be used, modem control is performed to make it possible to send commands (step S3).

The modem control in step S3 is to turn on the ER (equipment ready) signal and wait for the C8 (ready to send) signal to turn on.

Next, the dial number received from the upper level is checked for parity (step S4), and the battery number is set separately for each of the two command formats for character synchronization format and frame synchronization format as the dial number for automatic dialing.
It is stored in the work area on the backup memory (step S5).

Next, a parameter request command (RL
P command) is issued in a character synchronous command format (step S6).

Then, the response of the NCU to the parameter request command is monitored for a certain period of time, and the setting state of the command format by the dip switch SW4 of the NCU is determined from the response result (step S7).

If the dip switch SW4 of the NCU is set to the character synchronization format, the NCU that receives the parameter request command sends an index engine called LSP (parameter list) in order to perform the parameter request command and the command format car. In return, an interrupt is generated from the NCU that allows the received data to be read. However, N
If the dip switch SW4 of the CU is set to frame synchronization format, the command format does not match that of the parameter request command, so the indicators NCUf and tLSP that receive the parameter request command are not returned.

Therefore, the command format set by the dip switch SW4 of the NCU can be known from the response result of the NCU to the parameter request command.

And in response to the parameter request command,
If a received data readable interrupt occurs, automatic dial processing is performed using a character synchronized command format (step S8); otherwise, automatic dial processing is performed using a frame synchronized command format. (Step S9).

The auto-dial process sends auto-dial commands to the NCU.
After sending this auto-dial=+v command, the success or failure of the auto-dialing is determined depending on whether a command error indicator is returned from the NCU (step 510).

If a command error index is not returned from the NCU, automatic dialing has started normally, meaning automatic dialing was successful. If a command error index is returned from the NCU, automatic dialing has started successfully. This is when dialing has not started normally, meaning automatic dialing has failed.

When it is determined that automatic dialing has been successful, a code for automatic dialing success is set and the process returns to the upper level processing routine (step S11). When it is determined that automatic dialing has failed, a code for automatic dialing failure is set and the upper level processing routine is returned to. The process returns to the processing routine (step 512).

In the electronic telephone directory call control method of the embodiment as described above, when executing the automatic dialing process, a command of either the character synchronization format or the frame synchronization format is sent in advance.
A parameter request command is sent to the NCU in this format, and the command format set in the NCU by the deep switch is determined based on the response result from the NCU to the command.

Since the call processing is executed using the determined command format, there will be no command format mismatch during the call processing, and the command formats will match between the communication software used and the NCU. Even if the telephone number is not set, the automatic dialing process can be reliably executed using an automatic dialing procedure that complies with CCITT Recommendation V and the 25bis standard.

Therefore, there is no need to check whether the command formats match between the communication software used and the NCU, or to change the setting of a dip switch to make them match, thereby improving the ease of handling devices such as intelligent modems. It is also possible to prevent a hang-up phenomenon caused by a mismatch in command formats.

The following table shows the effects of the present invention for each item in comparison with the conventional example.

Further, according to the above embodiment, CCITT Recommendation V, 25
Since both command formats specified by the BIS standard can be supported, it is possible to unify the command formats on software for call control. We can expect improved compatibility.

In addition, in the above-mentioned embodiment, commands and commands in the NCU are
The parameter request command issued to the NCU to determine the format is in a character synchronization format. However, if the format of the parameter request command is set to frame synchronization format, the NC
It is also possible to determine the command format of the NCU from the response result of the U.

Furthermore, the personal computer body that utilizes the present invention is not limited to the if386AX shown in one embodiment.

[Effects of the Invention] In the electronic telephone directory call control method according to the present invention, when executing automatic dialing processing, a parameter request command is sent to the NCU in advance, and N
Based on the response result from the CU, the command format set in the NCU is determined by the dip switch.

Then, since the call processing is executed using the determined command format, there will be no command format mismatch during the call processing, and the command format will match between the communication software used and the NCU. At the very least, the automatic dialing process can be reliably executed using an automatic dialing procedure that complies with CCITT Recommendation V and the 25bis standard.

Therefore, it is not necessary to check whether the command format matches the communication software used and the NCU, or to change the setting of a dip switch to make it match, which improves the ease of handling devices such as intelligent modems. It is also possible to prevent hang-up phenomena caused by mismatching command formats.

Furthermore, since the call control method of the present invention can support both command formats specified in the 'CC1TT Recommendation V and the 25bis standard, it is possible to unify the command format on the software for call control. With this change, we can expect to accelerate software development and improve software compatibility.

[Brief explanation of the drawing]

FIG. 1 is a flowchart showing a processing procedure in an embodiment of the present invention, FIG. 2 is a system configuration diagram of a system that utilizes the embodiment, and FIGS. 3 and 4 are external views of the system in FIG. 2. FIG. 5 is an explanatory diagram of the bracket portion of the communication board shown in FIG. 3, and FIG. 6 is an explanatory diagram of the dip switch of the NCU of the communication board. 1...Hasokon body, 2...Display, 3...Keyboard, 4...Communication board, 5...Communication line, 6
...Telephone, SW4...dip switch. Figure 2 Figure 3

Claims (1)

[Claims] A call control method for an electronic telephone directory in which an intelligent modem with a built-in network control device executes an automatic dialing process according to a predetermined automatic dialing procedure, the method comprising: , character synchronous format or frame synchronous format commands.
sending a parameter request command to the network control device in the specified format, and determining the command format set in the network control device using a DIP switch based on a response result from the network control device to the command; , a call control method for an electronic telephone directory, characterized in that calling processing is executed in accordance with the determined command format.