JPH02220548A - Exchange with unattended transfer function - Google Patents

Abstract

PURPOSE:To allow a telephone set of its own seat being a transfer sender to reply a call even just before a person making registration of unattended transfer leaves its seat by calling the telephone set being the transfer sender in interlocking with the calling of a telephone set being a transfer destination when a call comes to the telephone set being the transfer sender registering unattended transfer. CONSTITUTION:Plural telephone sets 1-3 are housed in a speech path 8 of an exchange and call signal trunks 4, 5, a call trunk 6, a call tone trunk 7 and a central control unit 9 are connected to the speech path 8. When a call comes from the telephone set 3 to the telephone set 1, whether or not the telephone set 1 being a called party is in the state of the unattended transfer is discriminated in the step 10, and in the case of the unattended transfer, when the telephone set 1 registers the transfer to the telephone set 2, whether or not the telephone set 2 is in busy is discriminated in the step 20 and in the case of idle state, the step is transited to the step 30. Then the telephone set 2 being the transfer destination and the trunk 5 are connected to call the telephone set 2, and whether or not the telephone set 1 is idle is discriminated in the step 40, the telephone set 1 and the trunk 4 are connected in the step 50 to call the telephone set 1.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to a telephone exchange that accommodates a plurality of telephones and automatically connects arbitrary telephones, and particularly relates to a telephone exchange that accommodates a plurality of telephones and automatically connects any telephones. Concerning the functions of the exchange.

[Conventional technology]

Conventionally, the function of call forwarding in telephone communication y*m is that once registration of call forwarding is set from the transfer source phone to the transfer destination phone, from then on, incoming calls from other phones to the transfer source phone are If there is a call, the transfer source phone is not called, but the transfer destination phone is called.

(Problems to be Solved by the Invention) The conventional call forwarding function described above has the following drawbacks because when the call forwarding function is registered on the forwarding telephone, only the forwarding destination telephone is called.

For example, if a person who has registered for call forwarding does not immediately take his or her seat at the telephone that is the source of call forwarding, there is a disadvantage that he or she will not be able to answer calls that arrive during that time. If the person who registered for call forwarding takes some time to cancel the call forwarding registration after returning from the forwarding destination, there is a disadvantage that he will not be able to answer calls that arrive during that time. If you forget to cancel your registration, you will not be able to answer incoming calls for a long time.

SUMMARY OF THE INVENTION An object of the present invention is to provide an IT telephone exchange equipped with call forwarding means that eliminates the above-mentioned drawbacks.

(Means for Solving the Problems) The exchange of the present invention is an exchange that accommodates a plurality of telephones and automatically connects any of the telephones. When there is an incoming call,
At the same time, a call is made to the telephone that is the transfer destination, and the previous ik! The present invention is characterized by comprising means for also calling a single telephone, and means for connecting the incoming call to the telephone that answered the called transfer source or transfer destination.

[Operation] Therefore, according to the present invention, even if the call forwarding is registered,
Since it calls not only the transfer destination phone but also the transfer source phone, there is an advantage that a response can be answered directly from any phone.

〔Example〕

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

FIG. 1 is a block diagram schematically showing an embodiment of the present invention, and FIGS. 2 and 3 are flowcharts showing the operation of the missed call transfer means of FIG. 1.

As shown in FIG. 1, a communication path 8 constituting a telephone exchange
accommodates a plurality of telephones e111,2.3, connects a plurality of ring signal trunks 4.5, speech trunks 6, and call trunks 7, and furthermore provides a communication path between each telephone and each trunk. A central m+ device 9 is connected for connection and various controls.

Next, the operation of the embodiment shown in FIG. 1 will be explained with reference to FIGS. 2 and 3.

For example, in FIG. 1, I! from the third telephone 3 to the first telephone *i! If there is a call, in step 10 shown in FIG. 2, it is determined whether the first telephone 1, which is the called telephone, is registered for call forwarding, and if it is registered for call forwarding, the process moves to step 20. . Here, the first phone vIA1 is the second phone 8
12, it is determined whether the second telephone 2 that is the transfer destination is in an empty state, and if it is empty, the process moves to step 30 and the second telephone 2 that is the transfer destination and the second telephone 2 are transferred. A call signal trunk 5 is connected to the second telephone 2 to call the transfer destination. Next, proceed to step 40, and transfer from w41 of the transfer source.
If it is determined whether the telephone 111 is idle, the process moves to step 50, and the first telephone 1 of the transfer source
and the first calling signal trunk 4 to call the first telephone 1 of the transfer source. In this case, the third
A ring trunk 7 is connected to the telephone 3, and listening to the ring tone is the same as normal incoming call processing.

Next, as shown in FIG. 3, if either the first telephone 111, which is the transfer source, or the second telephone 2, which is the transfer destination, responds, the process moves to step 60, and when the call is answered, Determine whether there is a telephone that is ringing in conjunction with the telephone. Next, the process moves to step 70, and if it is the first telephone I11 that has responded, then the second telephone 2 that is the forwarding destination that is being called is
The connection with the call signal trunk 5 is restored and the call is stopped. Next, in step 80, in order to communicate between the first telephone 1 of the transfer source that has responded and the third telephone 3 that is the incoming call, the first telephone Ill of the transfer source and the ringing signal trunk 4 are connected. At the same time as restoring the connection between the third telephone tfi3 and the ring trunk 7, the first telephone 1 and the third telephone of the transfer source are respectively connected to the call trunk °6. .

To summarize the above-mentioned embodiment in another way, this embodiment uses the call forwarding method of a telephone exchange to call the forwarding destination telephone when a call is received at the forwarding telephone that has registered call forwarding. A call forwarding method characterized by providing a means for also calling a forwarding source telephone and a means for allowing an incoming call to be communicated with the telephone that answered first, either the calling forwarding source telephone or the forwarding destination telephone. be.

(Effects of the Invention) As explained above, the present invention provides that when an incoming call is received on the transfer source phone that has registered call forwarding, the transfer destination phone is called in conjunction with ringing the transfer destination phone. Even if the person who has registered for call forwarding is about to leave his or her desk, he or she can answer the call using the telephone that is the source of the call at his or her desk.

In addition, even if the person who registered for call forwarding returns from their desk using the forwarding destination phone and is about to cancel the call forwarding registration, they can still answer the call using the phone from which the call was forwarded. There is an effect. Furthermore, even if you forget to cancel your call forwarding registration, you can still answer an incoming call.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention, and FIGS. 2 and 3 are flow charts showing the following. 1.2.3...Telephone, 4.5...Ring signal trunk, 6...Talking trunk, 7...Ring tone trunk, 8...Call path, 9...Central ti11111111M. Operation example in Figure 1

Claims (1)

[Scope of Claims] 1) In an exchange that accommodates a plurality of telephones and automatically connects any of the telephones, when there is an incoming call at the transfer source telephone that is registered for call forwarding, means for calling the telephone which is the forwarding destination and also calling the telephone which is the forwarding source; and means for connecting the incoming call to the telephone which answered the calling forwarding source or the forwarding destination. An exchange having a call forwarding function, characterized in that it is equipped with means and. 2) Claim 1, wherein the calling means is a calling signal trunk, a communication path, and a central control unit that constitute the exchange, and the connecting means is the central control unit. Exchange machine described in.