JPS6180936A - Private branch exchange - Google Patents

Abstract

PURPOSE:To execute preferentially and quickly an answer to an incoming from an external trunk by constituting a titled exchange so that other person in a substitute answer group can execute a substitute answer by only taking up a handset, with respect to an incoming to an extension where an answerer is absent, from the external trunk. CONSTITUTION:When an incoming comes to an extension A2 from an external trunk, a call signal for showing the incoming from the external trunk is sent to the extension A2 from a ringing trunk RGTb, and a ringing tone is sent to the external trunk from a ringing tone trunk RBT. In this case, '1' and '0' are stored in an external trunk incoming memory T1 in a discrimination control device DCE, and an incoming memory T2 in the own station, respective ly, therefore, a central control device CC changes a connection in a link frame LF to a connection of a substitute answering system which requires no special number. Accordingly, for instance, when the extension A1 takes up a handset, it can execute a substitute answer of the extension A2 immediately.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention Vi has a multiplex telephone transceiver (hereinafter simply referred to as a transceiver), and when one of the plurality of transceivers receives an incoming call, the answerer This relates to a local telephone exchange that responds on behalf of another handset if the person is absent.

[Conventional technology]

One of the conventional methods of this type is that when a call is received on an extension in a proxy answering group where there is no responder, the other extensions in the same group raise their handsets and dial an identification number (hereinafter referred to as a special number). Then, there is a method (hereinafter referred to as a method that requires a special number) that allows calls to be answered on behalf of incoming calls from extensions where there is no responder, and another method is to respond when calls are received to extensions where there is no responder within the proxy response group. At the time, there was a system in which other extensions in the same group could respond to incoming calls on the unattended extension by simply raising their handset (hereinafter referred to as a system that did not require a special number). .

[Problem that the invention seeks to solve]

With conventional private branch telephone exchanges such as those mentioned above, which require a special number, the substitute answerer must pick up the handset and dial the entire special number, especially when answering calls from customers on external telephone lines. There was a problem that if it took a long time, the service to customers would deteriorate. In addition, in a system that does not require a special number, when the proxy answerer picks up the handset, the connection for proxy response is automatically established, so that a proxy response can be made for an incoming call from within the own station to an extension where there is no responder in the proxy response group. However, when it is desired to give priority to calls made to customers on the external office line, it is not possible to select all the destinations to be called as described in 7, and there is a problem in that the service to customers on the external office line deteriorates.

This invention was made to solve this problem fc, and when a call is received from within the own office (that is, from a handset directly connected to a private intercom) to an extension where there is no answerer, The other party in the proxy response group selects whether to respond to the incoming call on your behalf using a special number, or to make another call (for example, a call to the customer via a central office line) without responding on your behalf. On the other hand, in response to an incoming call from an external office line to an extension where no one is answering, another person in the proxy answering group can pick up the handset and answer the call on his/her behalf without dialing. The purpose is to obtain a telephone exchange.

[Means for solving problems]

The private branch telephone exchange according to the present invention uses a storage program control method to identify and store incoming calls within the proxy response group of the local extension line as to whether the calls are from within the local office or from an external office line, and to store this information. If the incoming call from the external office line is stored according to the content, the handset in the proxy response group connects using the proxy response method that does not require a special number, and the incoming call from the external office line is not stored and is automatically connected. When only incoming calls from local extension lines were stored, the connection was controlled to use a proxy response method that required a special number.

[Effect]

In this invention, incoming calls within the proxy response group are selectively controlled so that calls from within the own station are received as a proxy response that requires a special number, and calls from an external station are selectively controlled as a proxy response that does not require a special number. Incoming calls from the line can be answered preferentially, quickly, and reliably.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

1, 2, and 3 are block diagrams each showing an embodiment of the present invention, and FIG. 1 shows a case where only one call can be received from within the local station to the proxy response group. In the figure, A□, A2...A, and IBIC are extensions, respectively, and Al, A2...An are extensions within the same proxy response group. L F 1-jl, IJ link frame,
・ORT is the originating register trunk, COT is the office line trunk, RGT (a) is the ringing signal trunk for calls originating within your own office, RBT is the ringing trunk, engineering OT is the trunk within your own office, CC is the central control unit, and DEC is the trunk within your own office. Identification control device, T1
is the external station d incoming call memory, and T2 is the own incoming call memory.

Next, the operation of this invention will be explained. In a private telephone exchange configured as shown in Fig. 1, when a call is made from the inner edge B to extension A2, the route shown in Fig. A ringing signal indicating an incoming call is sent to extension B, and a ringing tone is sent from the ringing trunk RBT. At this time, "0" is stored in the memory T1 in the identification control device DEC, and "1" is stored in the memory T2. Identification side #device DEC is memo IJ
T1. Check the contents of T2, T0=rOJ, T2=r
In the case of lJ, the link frame L is sent via the central controller ce.
The connection in F is a proxy response type connection that requires a special number. Therefore, it is possible to respond on behalf of extension A2, which requires a special number for other extensions in the proxy response group (for example, A1), and to make calls to extensions or external telephone lines by dialing a predetermined number. becomes. Therefore, in the absence of the responder, θA
If calls to 2 continue, when you lift the handset to the extension, the route marked ■ in Figure 1 will be connected, and when you dial the special number, the route marked ■-1 will be connected, and extension A2 will answer on your behalf. Also, by dialing the specified number, the first
The routes ①-2 and ②-3 in the figure are connected, and it becomes possible to make a call to an extension line or an external office line within the proxy response group.

Fig. 2 is a diagram showing the case where only one call is received from the external office line to the proxy response group, and the same reference numerals as in Fig. 1 indicate the same parts, and RGT (b) is for the call originating from the external office line. If there is a ringing signal trunk. When a call is made from the external office line to extension A2, the route marked ■ in Figure 2 is connected, and a ringing signal indicating that the call is coming from the external office line is sent from the output signal trunk RGT (b) to internal mAz. The ring tone is sent to the external office line from the ring tone trunk RBT. At this time, "1" is stored in the memory T1 in the identification control device DCE, and "0" is stored in T2.
is stored, and the identification system @ device DCE detects that the contents of the memory T1 are rlJ. The identification system @ device DCE uses the central system n device CC money to make the connection in the link frame LF a connection using a proxy response method that does not require a special number. . Other extensions in the proxy response group′□°
(For example, AI) does not require a special code #A2
It becomes possible to respond on behalf of Therefore, extension A with no responder
While the call to MA2 continues, the call cannot be made automatically even if extension A picks up the handset, and the route marked ■ in Figure 2 is immediately connected and answers on behalf of the internal MA2.

FIG. 3 is a diagram showing a case where there is one incoming call to the proxy response group from the local station line and one from the external station line, and the same reference numerals as in FIGS. 1 and 2 indicate the same parts.

If you make a call from within your own station to extension @Aa, the route will be ■-1 in Figure 3, and if you make a call from an external station line to extension A2, the route will be ■-2.
The route is connected to extension A3, and a ringing signal indicating an incoming call from within the own station is sent from the ringing signal trunk RGT (a) to extension A3, and a ringing signal indicating an incoming call from the external station line is sent to extension A2 from the output signal trunk RGT (b). A signal is also sent to extension B and the external office line from the ring trunk RET.

At this time, "1" is stored in both memories T and T2 in the identification control device DCE, and the identification system [DCE detects that the content of memory T1 is "l"] , the connection Fyc in the link frame LF is a proxy response connection that does not require a special number. Other internal connections within the proxy response group (for example A□) do not require all special numbers, extension A
Since the connection allows proxy responses for A2.2, extension A2. Extension A while calls to A3 continue.
Even if the handset of extension A3 is raised, it is not possible to make an alternate response or automatic call to an incoming call on extension A3, and the route marked ■ in FIG.

As a result of the above-described operation, in the private branch telephone exchange according to the present invention, when there is only an incoming call from within the own office to an extension in which there is no responder in the proxy answering group, the proxy answerer is given a special number charge, or You can freely choose whether to make an automatic call by dialing the call number, and if there is an incoming call from an external office line, the priority is automatically switched to a proxy response that does not require a special number. .

In addition, in the above implementation IylJ, the case where there is one incoming call each from the local office line and one from an external office line is explained, but even when there is an incoming call for each double collection, the operation of the above-mentioned interval R is repeated from the first incoming call to the next one. shall be carried out.

In addition, in the above embodiment, calls from within the own station are answered by a special number, but if the delay from lifting the handset to making the first dial is longer than a certain period of time, this is done by dialing the special number. You may also use a method that allows you to respond on your behalf by assuming that the request has been made.

〔Effect of the invention〕

As described above, according to the present invention, a proxy response to an external office line is given priority over incoming calls from within the own office as a proxy response method that does not require a special number, and a response from an external office line to an extension where there is no responder is given priority. Other than when a call is received, even if a call is received from an extension to an extension where no one is answering, the call can be made as long as the special number t is not dialed. It has maximum effect.

[Brief explanation of drawings]

Figures 1, 2, and 3 are block diagrams each showing an embodiment of the present invention. In the case where there is only one line from the external office line, FIG. 3 is a diagram showing the case where there is one line each from within the local office and from the external office line. In the figure, A□, A2, A3...An+B+C are each extension, LF is the link frame, ORT is the originating register trunk, CoTH central office line trunk, and RGT (a)
is the ringing signal trunk for calls originating within your own office, RBT is the ringing tone trunk, OT is the trunk within your own office, CC is the central control unit, DCE is the Yaribetsu control equipment + rL 'rl is the office line message memory, T is within your own office The incoming call memo IJ and RGT (b) are output signal trunks in the case of a central office line call. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Claims] A premises where multiple extensions and external office lines are connected so that when a call is received on one of the multiple extensions, a proxy response can be made by another extension in the proxy response group to which the extension belongs. In a telephone exchange, an identification control device that selects whether the incoming call is an incoming call from an extension line connected to the private branch telephone exchange or an incoming call from the external office line; an incoming call memory that separately stores the selected incoming calls; If an incoming call from the above external office line is stored in the incoming call memory according to the memory contents of this incoming call memory, when the handset in the above proxy response group is raised, a proxy response connection will be established immediately, and only the incoming call from the above extension will be connected. If the call is stored in the incoming call memory, the central control device controls the proxy response connection when the handset in the proxy response group is raised and a predetermined specific number (special number) is dialed. and means for transmitting different ringing signals for incoming calls from the extension line and for incoming calls from the external office line.