JPH02266740A - Absence transfer system - Google Patents

Abstract

PURPOSE:To judge a transfer origin telephone set with the kind of the call tone of a transfer destination telephone set by setting the call tone of the transfer destination telephone set at the one according to the call tone information of the transfer origin telephone set on which absence transfer is registered. CONSTITUTION:When a number corresponding to a ringing cycle and the number corresponding to a frequency are dialed following the specific number of call tone registration at a telephone set 1, a central processing unit 8 registers the call tone information on the memory device 4a of a line circuit 4. When absence transfer registration to a telephone set 3 is performed at the telephone set 1, the central processing unit 8 reads out registered call tone information from the memory device 4a corresponding to the telephone set 1 when a call is issued from a telephone set 2 to the telephone set 1, and calls the telephone set 3 that is the transfer destination of the telephone set 1 by the call tone according to read out call tone information. In such a manner, since the same call tone as that of the transfer origin telephone set is generated at the transfer destination telephone set, it is possible to judge the transfer origin telephone set by the transfer destination telephone set.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field 1] This invention relates to a call forwarding system in a horizontal automatic switchboard, and in particular to a call forwarding system in which a forwarding source telephone can be identified by the type of ringing tone of the forwarding destination telephone [prior art ] Conventionally, in the call forwarding system in automatic exchanges that accommodate telephones, forwarding is performed as follows.

That is, when the operator is absent from his or her desk, he or she registers for call forwarding by dialing the special number followed by the telephone number of the forwarding destination without indicating call forwarding registration on the telephone at his or her desk. When a call is made to the phone that has been registered as absent, that is, the transfer source phone, the call is transferred to the transfer destination phone that has been registered in advance, and the transfer destination phone generates a ring tone and the call is made. There is.

[Problems to be Solved by the Invention] In the conventional call forwarding method described above, when call forwarding is registered from multiple forwarding source phones to one forwarding destination phone, calls are not sent to the forwarding destination phone. In such a case, unless the forwarding destination telephone answered the call by picking up the handset, it would not be possible to determine from which source telephone the call was being forwarded.

"F stage for solving the problem" The call forwarding system of the present invention is provided with a storage means for storing call tone information indicating the type of call "1" corresponding to the telephone set in the private automatic branch exchange, When a call is made to a transfer source telephone that has been registered for call transfer to the transfer destination telephone, the ring tone information is read from the storage means corresponding to the transfer source telephone, read Lf, and the call is transferred to the transfer destination according to the ring tone information. make a phone call.

[Function] Calling the transfer destination telephone 1. The sound will be based on the ring tone information of the forwarding phone that has registered the call forwarding9.
Therefore, the source telephone that performed the transfer can be determined based on the type of ring tone of the destination telephone.

[Example 1 Next, this invention C= will be explained with reference to the drawings.

The figure is a configuration diagram of a private telephone system according to an embodiment of the present invention.

i, = 3 is the electric 1 active device, and each line circuit 4
-6 to the communication path network 7 of the exchange 10. The line circuit 4-6 and communication path network 7 are connected to a central processing unit 8 by a control line and are controlled by this central processing unit 8. The line circuit 4 has a storage device 7f4a, and the line circuit 4 has a memory device 7f4a, and a ring tone 1 which is ring tone information.
The ring frequency jtl and frequency are selected and registered in the storage device 4a corresponding to the telephone 1. This ring tone registration is done as follows. When dialing the special number for ring tone registration followed by the number corresponding to the ringing cycle and the number corresponding to the frequency, the central processing unit 8 detects this dial information and stores the call 1 to tone information in the storage device 4a. By registering the ring tone in this way, when a call is received on the telephone 1, the telephone 1 is called according to the ring tone information registered in the storage device 4a under the control of the central controller 8. It will be done.

Next, the operation will be explained 6. Normally, when there is an incoming f3 to the telephone 1, the central processing unit 8 detects this and reads the ring tone information from the storage device 4a corresponding to the telephone 1. The ringing frequency and frequency according to the telephone l111
It occurs in

On the other hand, if telephone 1 has registered call forwarding to telephone 3 in advance, when telephone 2 makes a call to telephone 1, central processing unit 8 that detects this call corresponds to telephone 1. The registered ringing tone information is read out from the storage device 4a of the line circuit 4. Then, the telephone 3 to which the telephone 1 is transferred is called with a ring tone according to the ring tone information read from the storage device 4a. As a result, the telephone 3 generates a ringing tone with a ringing cycle and frequency according to the ringing tone information registered for the telephone n1-. The operator who registered the call forwarding on telephone R hears this ringing tone and recognizes that the call is being forwarded to him/her] - When the operator responds by using the hand cell I of telephone 3, this telephone 3 is connected to the line circuit. 6. Registered in the storage device 4a corresponding to the transfer source phone 81, which is connected to the caller's phone a2 via the communication path network 7 and the line circuit for 5 minutes. The destination telephone 3 is called in accordance with the ringing tone information. Therefore, the transfer destination phone 3 uses the transfer source phone R1.
The same call 1~ sound is generated, so the transfer source phone 1
You can see that the call is being forwarded.

In addition, in the explanation of L, in order to simplify the explanation, only the storage device 4a of the line circuit 4 of the telephone 1 of the transfer source was described, but the line circuit 5.6 of the other telephones 2.3
A storage device similar to the storage device 4a is also provided,
phone! 1!2.3, it goes without saying that the missed transfer operation as described in J- is also performed.

[Effects of the Invention 1] Description [, Z] According to the call forwarding method of the present invention, a call is made to the forwarding destination telephone according to the ring tone information of the forwarding telephone that has registered the call forwarding. Since the transfer destination phone generates the same ring tone as the transfer source phone, the transfer destination phone can identify the transfer source phone.

Therefore, if call forwarding is registered for one forwarding destination phone from multiple forwarding source phones that are registered with different types of ring tones, the user who registered the forwarding will be able to By listening to the type of ringing tone, you can determine whether or not the call is being forwarded from your forwarding phone.
It becomes possible to receive calls transferred to oneself without hesitation.

[Brief explanation of drawings]

The figure is a configuration diagram of a private telephone system according to an embodiment of the present invention. 1-3...Telephone, 4-6...Line circuit, 4a-
. . . Memory circuit, 7. Call path network, 8. Central processing unit, 10. Yokonai automatic switchboard.

Claims (1)

[Scope of Claims] A storage means is provided in the private automatic branch exchange for storing ring tone information indicating the type of ring tone corresponding to the telephone, and a transfer source telephone for which call forwarding has been registered for the transfer destination telephone is provided. When a call occurs, ring tone information is read from a storage means corresponding to the transfer source telephone, and the transfer destination telephone is called in accordance with the read ring tone information.