JP3233216B2 - Incoming call processing method and apparatus for calling subscriber number display service added subscriber terminal of WLL system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a WLL system in which a subscriber terminal is accommodated in an exchange via a wireless line, and more particularly to a method and apparatus for processing an incoming call to a subscriber terminal by a WLL system that enjoys a calling subscriber number display service. About.

[0002]

2. Description of the Related Art A typical configuration of a conventional WLL system will be described with reference to FIG.

The calling number display service, that is, the calling subscriber number display service, has different names and specifications of services such as a number display service in Japan and a Caller ID in the United States, but here, information before communication between subscribers is widely used. This will be described below as a calling number display service in the sense of a notification service. The service specifications will be described below, taking as an example the NTT's calling subscriber number display service provided in Japan.

FIG. 3 is a basic block diagram of accommodating an exchange for a subscriber terminal subscribing to the WLL system. The exchange IF unit 200 is in charge of an electrical and physical interface with the exchange 100, and notifies the control unit 300 when an incoming call from the exchange 100 is detected.

Here, the interface with the exchange 100 is a 2-wire (Wiring) if it is an analog interface.
e) is a metallic line, and if it is a digital concentrator interface, it is recommended by ITU-T Recommendation G. 964, G.C. The V5.1 and V5.2 interfaces defined by H.965 will be explained assuming that the exchange 100 accommodates an analog telephone terminal and is connected by a two-wire interface.

[0006] Further, it is assumed that the corresponding subscriber terminal (hereinafter referred to as a terminal) 600 is a terminal that can enjoy the service and has exchanged a contract or the like for enjoying the service with the communication company that operates the exchange 100.

[0007] The exchange IF unit 200 has a function of detecting the reversal of the polarity from the exchange 100 or sensing a calling signal (ringing), and notifies the control unit 300 upon detection of this. In addition, ringing and silent in the call signal are sequentially notified. The control unit 300 that receives the notification can identify the ringing pattern of the calling signal from the detection timing of ringing and silent.

[0008] The control unit 300 is connected to the exchange IF unit 200.
At the point of being notified of the reversal or the detection of the calling signal, the incoming call is started to the access base unit 400 and the time switch T
A downstream (exchange → terminal) connection of the SW 301 is set. In addition, the access base unit 400 activates an incoming call to the access terminal unit 500. This is a measure to reduce the processing delay of the entire incoming call processing sequence because it is expected that the communication link establishment time between the access base station 400 and the access terminal unit 500 will take a certain time. When the call signal pattern identification is completed, the control unit 300 that has already started the incoming call notifies the access base unit 400 of the identified pattern signal. Upon receiving the pattern signal, access base section 400 promptly notifies access terminal section 500 if a communication link with access terminal section 500 has been established. When the access terminal unit 500 receives the pattern signal after the incoming call activated previously notified, the access terminal unit 500 performs the same signal processing as that of the control from the exchange 100 on the terminal 600, and performs the switching and access base unit 400
Ringing while controlling the timing according to the ringing signal pattern received from. Normally, at the time of a general incoming call in Japan, a ringing pattern of 1 second / 2 seconds called IR is made.

When the subscriber picks up the terminal 600 and answers, the access terminal unit 500 detects the off-hook, stops ringing to the terminal 600, and notifies the access base unit 400 of the subscriber's off-hook. When the off-hook is transmitted to control unit 300 via access base unit 400, control unit 300 instructs exchange IF unit 200 to perform an off-hook, and exchange IF unit 200 notifies exchange 100 of the off-hook. Further, the control unit 300 is a TSW 301
Up connection (from terminal to exchange).
When the off-hook is detected, exchange 100 determines that the response is that of the calling terminal, stops ringing, and returns. This signal is also transmitted from the switch IF unit 200 to the terminal 6 via the control unit 300, the access base unit 400, and the access terminal unit 500.
To 00. At this time, terminal 600 and exchange 100
Connection is established and the state shifts to a call state. Also,
When the terminal 600 hangs up after the end of the call, the access terminal unit 500 detects the subscriber on-hook and transmits it to the exchange 100 as in the case of the off-hook notification. In addition, the control unit 300 that detects the on-hook of the terminal 600 during the call transmits an end call to the access base unit 400, releases the bidirectional connection of the TSW 301 up and down, and receives the end signal. The access base unit 400 instructs the access terminal unit 500 to release the line, the connection is released in the wireless access section, and the access terminal unit 500 also shifts to an idle state. At this point, the terminal 60
0 and all the connections between the exchanges 100 are released and shift to an empty state. FIG. 4 illustrates an operation sequence from the general incoming call to the call to the end of the call.

[0010]

The conventional typical WLL system described above has the following problems when the service (service specification: NTT) is accommodated as it is.

The first problem is that transmission of a terminal primary response (off-hook) to the exchange 100 is delayed due to a delay from a start-up to a line establishment in a radio access section which is a characteristic of the WLL system. Incoming incoming call ~
Calling subscriber number to the terminal 600 the probability is high that the wait timer T ₀ up to the terminal primary response to time out is that can not be necessarily. The operation sequence in this case is shown in FIG.

The second problem is that when the terminal 600 goes on-hook for effective use of channel resources in the radio access section which is a feature of the WLL system, the access terminal unit 5
Since 00 the channel release signal from the access base unit 400 as an upper station is sometimes provided with a function of channel release autonomously and not transmitted, the terminal primary response in time for waiting timer T ₀ of switch 100, well signaling Can be
Terminal due to return to idle state and also can be transmitted within the waiting time of a reception completion notification hook until information transmission completion-reception completion notification waiting timer T ₁ until switch 100, through autonomous channel release at the access terminal unit 500 600
As a result, the terminal 600 regards the call as abandoned during the call and cannot always correctly display the calling subscriber number. FIG. 6 shows an operation sequence in this case.

An object of the present invention is to provide a WL which has solved the above-mentioned problems.
It is an object of the present invention to provide an incoming call processing method and apparatus for an originating subscriber number display service of the L system.

[0014]

SUMMARY OF THE INVENTION According to the present invention, there is provided a method for processing an incoming call of a calling subscriber number display service of a WLL system, comprising the steps of: An incoming call processing method, comprising a WLL subscriber control step in a wired section between an originating subscriber number display service additional subscriber terminal and a local exchange, and in the WLL subscriber stage, a call transmitted by the exchange. When recognizing that this is a pre-call signal for the subscriber number display service, a pseudo-primary response is made in place of the called subscriber terminal, thereby receiving, storing and holding the calling subscriber number information sent by the exchange. A pre-processing step of the calling subscriber number notification service for returning a reception completion signal, and a normal call signal pattern determination transmitted from the exchange upon reception of the reception completion signal. Establishing a wireless section line for an access terminal unit that manages a called subscriber terminal after identifying a normal call signal, and that the access terminal unit is to be called in advance by receiving a calling subscriber number display service. And transmitting a pre-call signal, and transferring the calling subscriber number information stored in response to the primary response of the called subscriber terminal to the pre-call signal . Outgoing subscriber number display
In the incoming call processing device of the service-added subscriber terminal, the opening of the radio section due to the on-hook of the reception completion signal of the calling subscriber number information transmitted by the receiving subscriber terminal is transmitted, and a normal calling signal is transmitted; Notifying the secondary response of the user terminal to the exchange and opening or disconnecting the communication path.

[0015] In the WLL system of the present invention, the incoming call processing apparatus for the subscriber terminal with the calling subscriber number display service is provided by the WLL wherein the accommodating line for the exchange is a wireless line.
An incoming call processing device for an outgoing subscriber number display service additional subscriber terminal of the system, comprising a WLL subscriber control device between the outgoing subscriber number display service additional subscriber terminal and the local exchange. When the WLL subscriber control unit detects the advance calling signal of the calling subscriber number indicating service sent by the exchange, the WLL subscriber control unit returns a primary response prior to the called subscriber terminal, and is transmitted from the exchange in response to the primary response. Means for accumulating the calling subscriber number information and returning a reception completion signal upon completion of the accumulation, means for judging a normal call transmitted from the exchange, and Means for establishing a wireless section line for an access terminal controlling the terminal, means for causing the access terminal to transmit a pre-call signal to a terminating subscriber terminal, WLL subscriber subscriber number with the service and a means for transferring the calling subscriber number information which has been accumulated in accordance with the response to the receiving terminal via an access terminal portion
An incoming call processing device for a called party terminal, means for inhibiting opening of a radio section by a reception completion signal sent by the called terminal, sending a normal call signal to the called subscriber terminal, and switching the secondary response of the called subscriber terminal to an exchange. And means for opening or disconnecting the communication path, and means for notifying a signal from the exchange to the receiving terminal and performing normal call processing.

Further, a specific embodiment of the terminating call processing apparatus for the subscriber terminal of the calling subscriber number display service of the WLL system according to the present invention is a WLL system between the exchange and the subscriber.
An exchange interface unit for detecting a signal from the exchange, transferring the signal to the control unit, and transmitting a signal transmitted from the control unit to the exchange to the exchange; A maintenance terminal for storing a subscriber number display service additional subscriber list, a TSW as a time switch for selectively connecting them, and a control unit for controlling the connection of the TSW; Incoming call to a subscriber terminal with a calling subscriber number display service of a WLL system, having an access base unit for connecting to a subscriber line wired section, and an access terminal unit for managing a subscriber terminal including a wireless transmitting / receiving unit on the subscriber terminal side. In the call processing device,
Said WLL subscriber control device having a storage unit for storing calling subscriber number information, a means for returning a primary response when a prior call signal of the calling subscriber number display service is detected by pattern recognition, Means for storing the calling subscriber number information transmitted from the exchange in the storage section via the connection of the TSW, and returning the reception completion signal to the exchange when the reception of the calling subscriber number is completed. Means for judging a normal signal to be transmitted according to the signal by pattern determination and passing it to the access terminal unit, and after the primary response, instructs the access base unit to connect the radio line and instructs the access terminal unit to transmit the pre-call signal. Means for transferring calling subscriber number information from the storage unit via the access base unit by a primary response of the receiving terminal in response to a prior call of the access terminal unit Means for sending a normal call signal to the called subscriber terminal by the reception completion signal, means for notifying the exchange of the secondary response of the called subscriber terminal, and means for opening or disconnecting the communication path; Means for notifying the called subscriber terminal and performing normal call processing.

[0017]

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of an incoming call processing device for an outgoing subscriber number display service of a WLL system to which an incoming call processing method of an outgoing subscriber number display service of a WLL system according to the present invention is applied.

In FIG. 1, an exchange interface unit (hereinafter, referred to as an exchange IF unit) 2 performs an electrical and physical interface with the exchange 1 and notifies a control unit 3 of the detection of an incoming call from the exchange 1. Here, the interface with the exchange 1 is a two-wire metallic line in the case of an analog interface, and in accordance with ITU-T Recommendation G. 964, G.C. The V5.1 and V5.2 interfaces defined by H.965 are both assumed to accommodate analog telephones in the exchange 1 as subscribers and are connected here by a two-wire interface. .

The corresponding subscriber terminal 6 is a terminal that can enjoy a calling number display service (hereinafter, abbreviated as NDS), and establishes a contract with the communication company that operates the exchange 1 to enjoy the NDS service. It is assumed that they are exchanged.

The maintenance terminal 7 performs NDS registration control of the wireless subscriber terminal 6 in the WLL system and determines that the subscriber is an NDS contract subscriber via a maintenance operation signal transmission route in the system before starting the service. 3 is notified.

The exchange IF section 2 has a function of detecting the reversal of the polarity from the exchange 1 or sensing a calling signal (ringing), and notifies the control section 3 when this is detected. Also,
Ringing and silent in the ringing signal are notified sequentially.

The control unit 3 that receives the notification can identify the ringing pattern of the calling signal from the detection timing of ringing and silent. When the paging signal pattern identification is completed, the control unit 3 determines whether the pattern is a pre-call signal unique to the operator in the pre-communication information notification service and also determines whether the pattern is a pre-registered subscriber.

As a result of the determination, if the called subscriber is an NDS subscriber and the calling signal pattern is an operator-specific pre-call signal in the pre-communication information notification service, the control unit 3 controls the exchange IF unit 2 A downlink connection for connecting the corresponding subscriber channel to the storage unit 8 via the TSW 31 is set.

On the basis of the specifications of the exchange 1, the control unit 3 waits in the storage unit 8 for a certain period of time after receiving the calling subscriber number information signal sent from the exchange 1 after a certain period of time from the detection of the incoming call or after a certain period of time after the primary response from the terminal. Stores information as digital signals.

The maximum time of the transmission time from the exchange can be calculated from the specification, the transmission rate, and the maximum transmission data size. Therefore, after a certain period of time, the reception by the storage unit 8 is completed and the exchange 1 needs to be notified of the completion of reception. Perform the processing corresponding to the primary response, and move to the next processing. Thereafter, the exchange 1 enters a normal call signal transmission state and waits for the terminal 6 to go off-hook.

The control unit 3 notifies the access base unit 4 of the incoming call activation that the identified pattern signal and the corresponding incoming call are NDS. Upon receiving the signal, the access base unit 4 activates the incoming call to the access terminal unit 5 and notifies the identified pattern signal and that the incoming call is NDS.

The access base unit 4 immediately notifies the control unit 3 when a communication link connection with the access terminal unit 5 is established.

When the access terminal unit 5 receives the pattern signal notified earlier and the incoming call start notification indicating that the incoming call is received, the access terminal unit 5 performs the same signal control as the control from the exchange 1 on the subscriber terminal 6. , Reversal and access base 4
Ringing while controlling the timing in accordance with the calling signal pattern received from.

When the control unit 3 receives the report of the link establishment from the access base unit 4, the control unit 3 releases the input downlink connection between the exchange IF unit 2 and the storage unit 8 and transmits the output of the storage unit 8 to the access base unit 4. The connection is set by the TSW 31 to perform transmission, and the storage unit 8 is instructed to start transmission of the storage information.

The access terminal unit 5 shifts to a normal paging signal transmission after a predetermined time determined according to the specifications. Also, when there is a primary response (off-hook) or a reception completion notification (on-hook) from the subscriber terminal 6, the user knows that it is an NDS applicable incoming call and passes through the access base unit 4 without releasing the wireless section. Then, information is transmitted to the control unit 3.

When an off-hook caused by the subscriber terminal 6 picking up the handset is detected by the access terminal unit 5, the off-hook signal is transmitted to the control unit 3 via the access base unit 4. Upon receiving the off-hook, the control unit 3 sets up a bidirectional connection in the up-down direction and sends an off-hook transmission instruction to the exchange IF2. The exchange 1 determines that an incoming call has been received by off-hook detection and establishes a connection.

Next, the operation of this embodiment will be described using the operation sequence shown in FIG.

This embodiment will be described based on an example in which services are provided by NTT. Here, description will be made on the assumption that the interface with the exchange 1 is connected by a two-wire interface. Further, it is assumed that the corresponding subscriber terminal 6 is a terminal that can enjoy NDS, and has exchanged a contract or the like for enjoying the NDS service with the communication company that operates the exchange 1.

The maintenance terminal 7 performs the NDS service registration control of the subscriber terminal 6 in the WLL system and confirms that the subscriber is an NDS subscriber via a maintenance operation signal transmission route in the system before starting the service. Notify your registration.

When the exchange IF unit 2 senses the reversal and the ringing signal (ringing) from the exchange 1, it notifies the control unit 3 and successively notifies the ringing and the silent in the ringing signal (step 21). Upon receiving the notification, the control unit 3 identifies the ringing pattern of the calling signal from the detection timing of the ringing and the silent, and from the pattern, a CAR pattern (a ringing pattern indicating NDS in this embodiment) which is a service activation signal unique to the service provider. ) And whether the called subscriber is an NDS subscriber registered in advance (steps 22 and 23).

As a result of the determination, the called subscriber is an NDS subscriber, and the operator-specific NDS in the call signal pattern
Is the start signal, the control unit 3 sets a downlink connection for connecting the corresponding subscriber channel of the exchange IF unit to the storage unit 8 via the TSW 31 (step 2).
4).

Based on the specifications of the exchange 1, the control unit 3 issues an off-hook transmission instruction to the exchange IF unit 2 within 6 seconds including the call pattern identification time from the detection of the incoming call and operates in advance of the primary response of the terminal. (Step 25). CAR
Ringing and silent repetition of 0.5 seconds / 0.5 seconds are required, and pattern detection does not require much time.

The primary response is followed by a certain time (0.3
After about 1 second), the calling subscriber number information signal is transmitted from the exchange 1, and the information signal is received by the storage unit 8, and the information is stored as a digital signal for a certain period of time (step 26).

Although the maximum transmission time from the exchange 1 is not specified, the transmission rate is 1200 bps according to the service specification.
It can be calculated from the data length = 10 bits and the maximum transmission data size = 128 bytes by approximation. For a certain period of time (for example, assuming that information transmission starts 3 seconds after the primary response and there is a 10-bit mark signal between data, 3 seconds + 60 ms + 128 × (10 + 10) bit / 1
200 = maximum of about 5.16 seconds) To terminate the reception in the storage unit 8 and switch on to the exchange 1 as an on-hook as a reception completion signal, the exchange I
The control unit 3 issues an on-hook transmission instruction to the F unit 2 (step 27).

Thereafter, the exchange 1 returns to the normal calling signal (I
R) Transmission state is established and the terminal 6 is waiting for an off-hook, and the control unit 3 determines a normal call signal (IR) from the exchange.

The control unit 3 notifies the access base unit 4 of the identified pattern signal and a call start notification including the fact that the called subscriber is a service subscriber (step 28). Upon receiving the incoming call start notification signal, the access base unit 4 starts the incoming call to the access terminal unit 5 and notifies the identified pattern signal and the incoming call corresponding to the service (step 2).
9).

The access base unit 4 immediately notifies the control unit 3 when a communication link connection with the access terminal unit 5 is established (step 30).

When the access terminal unit 5 receives the pattern signal and the incoming call start notification indicating that the incoming call is NDS, the access terminal unit 5 gives the subscriber terminal 6 control processing equivalent to the control from the exchange 1. Is performed, and the CAR pattern is sounded while controlling the timing in accordance with the switching signal pattern received from the access base unit 4 (step 31).

The terminal 6, which is a corresponding terminal, goes off-hook as a primary response upon detecting the sounding of the CAR pattern (step 32). The access terminal unit 5 notifies the control unit 3 of the detected off-hook via the access base unit 4 and stops the ringing (step 33).

When the control unit 3 receives the off-hook from the access base unit 4, it releases the downlink connection between the exchange IF unit 2 and the storage unit 8, and outputs the output of the storage unit 8 to the subscriber terminal 6 via the access base unit 4. A connection is set for transmission to the storage unit 8 and the transmission of the storage information is instructed to the storage unit 8 (step 34).

Upon completion of the reception of the information, the subscriber terminal 6 goes on-hook, and the access terminal unit 5 transmits the on-hook to the control unit 3 via the access base unit 4 and, after a predetermined time predetermined by the specification, a normal call signal. (IR)
It shifts to sending (step 35).

If there is a primary response (off-hook) or notification of completion of reception (on-hook) from the subscriber terminal 6, the access terminal unit 5 knows that the call has been received, and the access terminal unit 5 performs access without releasing the wireless section. Information is transmitted to the control unit 3 via the base unit 4.

When the subscriber terminal 6 picks up the receiver,
The off-hook is detected by the access terminal unit 5, and the off-hook signal is transmitted to the control unit 3 via the access base unit 4. The control unit 3 performs an off-hook transmission instruction to the exchange IF2 performs connection setting of uplink and downlink bidirectional receives the off-hook, exchange 1 to the off-hook detection
Then, it is determined that the terminal is a secondary response, and a connection is established (step 36).

The exchange IF 2, the control unit 3, the maintenance terminal 7, the TSW 31, and the storage unit 8 constitute one WLL subscriber control unit 10, and need not necessarily have a 1: 1 connection relationship with the access base unit 4. In general, there is a relationship of 1: plural.

The access base unit 4 and the access terminal unit 5 naturally have a 1: many arrangement relationship.

[0051]

As described above, the present invention has the following effects.

The first effect is that the system has a function of temporarily accumulating information sent from the exchange, so that the exchange can operate before the actual operation of the terminal. It is possible to perform the incoming call processing of the number display service equivalent to that of the subscriber directly connected to the metallic subscriber line without suffering from the processing delay of the specific wireless section.

The second effect is that the access terminal automatically opens the wireless section even if the access terminal unit is on-hook during the sequence because the incoming call start notification information includes that the incoming call is a service-applied incoming call at the time of the incoming call operation. That is, the call processing sequence can be continued without any need.

[Brief description of the drawings]

FIG. 1 is a diagram showing an incoming subscriber number display service additional subscriber terminal of a WLL system to which an embodiment of a method for processing an incoming call to an originating subscriber number display service subscriber terminal of a WLL system according to the present invention is applied; FIG. 2 is a block diagram of an incoming call processing device for the present invention.

FIG. 2 (a) is a signal from the prior call signal detection of the incoming call processing device to the transmitting subscriber number display service additional subscriber terminal of the WLL system shown in FIG. 1 until the stored transmitting subscriber number information is transmitted. FIG. 3B is a sequence chart of the transmission and reception, and FIG. 3B is a sequence chart of the signal transmission and reception from the completion of the advance information reception of the terminal to the start of the call.

FIG. 3 is a block diagram of an incoming call processing device for a calling subscriber number display service added subscriber terminal of a conventional WLL system.

4 is a sequence chart of signal transmission and reception in general incoming call processing of the conventional WLL system accommodation apparatus shown in FIG.

FIG. 5 is a sequence chart showing a state in which a number display cannot be performed due to a timing difference occurring after a primary response in a number display service in the conventional WLL system accommodation apparatus shown in FIG.

6 is a number display service in the conventional WLL system accommodating apparatus shown in FIG. 3, in which the access terminal is set to autonomous line release to improve channel utilization recently, and before the number display after the primary response. 7 is a signal transfer sequence chart when a line is released.

FIG. 7 is a flowchart showing the operation of the incoming call processing device for the calling subscriber number display service added subscriber terminal of the WLL system of the present invention shown in FIG. 1;

[Explanation of symbols]

 1, 100 exchange 2, 200 exchange IF 3, 300 control 4, 400 access base 5, 500 access terminal 6, 600 WLL subscriber terminal 7, 700 maintenance terminal 8 storage 10 WLL subscriber control device 31 TSW (Time switch)

Continuation of the front page (72) Inventor Masayuki Hagiwara 5-7-1 Shiba, Minato-ku, Tokyo NEC Corporation (56) References JP-A-10-308811 (JP, A) JP-A-9-149120 (JP, A) JP-A-11-8704 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) H04M 1/57 H04M 3/42 H04Q 7/00

Claims (4)

(57) [Claims] In 1. A subscriber line in the subscriber terminal in WLL systems are radio, Incoming call processing method for the originating subscriber terminal subscriber number with the service for the exchange
And a WLL subscriber control step intervening in a wired section between the calling subscriber number display service additional subscriber terminal and the local exchange. In the subscriber controlling step, the originating subscriber number transmitted by the exchange is provided. Upon detecting the advance call signal of the display service, a predetermined primary response to be responded to by the receiving subscriber terminal is returned to the exchange in a pseudo manner in advance, and the primary response accumulates calling subscriber number information transmitted by the exchange. A pre-processing step of a calling subscriber number display service for transmitting a reception completion signal upon completion of storage; a step of determining a normal paging signal transmitted by the exchange by pattern determination based on the reception completion signal; Configuring a wireless section line for an access terminal unit that manages a subscriber terminal; and wherein the subscriber control step includes the step of displaying a calling number display service via a wireless line. Instructing the access terminal of the wireless subscriber to receive the incoming call, and the designated access terminal exercises the same operation as the prior call of the calling subscriber number display service of the exchange to the terminal,
WL and a step of transmitting a calling subscriber number information stored in the subscriber control stage by the primary response of the terminal to the incoming call subscriber terminal via a radio channel and the access terminal portion
L-system originating subscriber number display service subscriber terminal
In the incoming call processing method, when the receiving subscriber terminal receives the calling subscriber number information and returns the reception completion signal, the opening of the radio section by the reception completion signal sent by the receiving terminal is suppressed, and the normal calling signal is transmitted. And a step of notifying the secondary exchange of the called subscriber terminal to the exchange and opening or closing the communication path, wherein the incoming call of the calling subscriber number display service added subscriber terminal of the WLL system is provided. Processing method. 2. The pre-processing step of the calling subscriber number display service detects whether the called subscriber is registered as a calling subscriber number display service-added subscriber by judging a pre-call signal sent from the exchange. The method of claim 1, further comprising the step of: 3. A subscriber line incoming call processor der for the originating subscriber number the subscriber terminal with the service in the subscriber terminal of the WLL system is a radio channel for the exchange
A WLL subscriber control device is provided in a wired section between the calling subscriber number display service additional subscriber terminal and the local exchange, and the WLL subscriber control device displays the originating subscriber number transmitted by the exchange. Upon recognizing that the service is a pre-call signal, it receives and stores the calling subscriber number information on behalf of the subscriber terminal, and returns a reception completion signal to the exchange when the reception is completed. Means for determining a normal call signal transmitted by the exchange, an access base unit constituting a wireless section line for an access terminal unit for controlling a called subscriber terminal after a primary response to a prior call , and the access terminal unit wherein indicates the delivery of the pre-call signal, and means for transferring the calling subscriber number information that is accumulated by the primary response of receiving subscriber terminals for, WL
Outgoing subscriber number display service in subscriber terminal of L system
An incoming call processing device for a service-added subscriber terminal, a means for inhibiting opening of a radio section by a reception completion signal sent by the called subscriber terminal, and sending a normal call signal to the called subscriber terminal; WLL system to notice the secondary response to the exchange, means for performing opening or cleavage of the speech path, and notification signals from the exchange to the called subscriber terminal, characterized by having a means for performing normal call processing Incoming call processing device for the subscriber terminal with additional calling subscriber number display service. 4. A subscriber control unit of the WLL system detects a signal exchanged between the exchange and the subscriber, and switches an interface for transferring a signal from the exchange, and a list of subscribers of a calling subscriber number display service. Terminal, a TSW which is a time switch for selectively connecting each unit and the maintenance terminal, a control unit for controlling the connection of the TSW, and a storage unit connectable to the TSW. Means for the control unit to make a preliminary call determination based on a pattern determination of the call signal detected by the interface unit, and for making a primary response via the exchange interface unit; and for transmitting the calling subscriber number information transmitted by the exchange in response to the primary response, to the exchange interface. Means for connecting to the storage unit via the TSW unit and the storage unit, and when the reception of the calling subscriber number information is completed, Means for returning a reception completion signal to the exchange via the interface unit, means for judging the connection of the normal calling signal from the exchange by pattern judgment, and notifying the access terminal unit, and for the access base unit after the primary response. Build a wireless line,
Means for transmitting the pre-call signal from the access terminal to the called subscriber terminal; and storing the calling subscriber number information stored in the storage unit via the access base unit by the primary response of the called subscriber terminal. Means for sending to the called subscriber terminal, the called subscriber terminal ending reception of the calling subscriber number information,
Means for sending a normal call signal to the called subscriber terminal when the reception completion signal is returned; means for notifying the exchange of a secondary response of the called subscriber terminal to the telephone to open or cut off the communication path; and signals from the exchange. Means for notifying the called subscriber terminal and performing normal call processing. 5. The incoming call processing apparatus for a calling subscriber number display service added subscriber terminal of a WLL system according to claim 4, further comprising: