JPH05176023A - Telephone terminal with incoming call transfer function - Google Patents

Abstract

PURPOSE:To alter a transfer destination number which is set from a telephone terminal by providing a means altering the number into a new transfer destination incoming number and a means transmitting the new transfer destination incoming number to an ISDN network. CONSTITUTION:The telephone number 679-1001 of a telephone terminal TE2, which is transferred in a telephone terminal with incoming call transfer function TE1 is set, and a special number is set in a sub-address. If a call is made from a public telephone system PE1 to the telephone terminal TE1 when an incoming transfer key 8 is operated, it is judged whether there is the special number in the sub-address or not. When there is no special number, the call is transferred to the telephone terminal TE2 of the telephone number 679-1001. When there is the special number, a response is made in the telephone terminal TE1. When the public telephone system PE transmits the incoming transfer destination telephone number 679-1011, the first transfer destination incoming number 679-1001 is altered into the new transfer destination incoming number 679-1011.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone terminal with a call forwarding function, and more particularly to a telephone terminal with a call forwarding function capable of changing a forwarding destination number set from a telephone terminal capable of receiving a call on an ISDN network.

[0002]

2. Description of the Related Art As shown in FIG. 4, a conventional telephone terminal TE ₁₁ with a call transfer function is provided with I
It is connected to the SDN network EX via DSU. If the destination call destination number 679-1001 is set by the call forward key 18 and the numeric keypad 17 of the telephone terminal TE ₁₁ with the call forwarding function, a call can be received to the ISDN network EX, for example, a telephone number 679-2.
When a call to the 001 phone call forwarding function with a telephone terminal TE ₁₁ of the terminal TE ₁₄ Kara telephone number 679 over 1005, call forwarding function with a telephone terminal TE ₁₁ transfer of arrival number this incoming call via the ISDN network EX 679 over Transfer to the telephone terminal TE _{12 of} 1001. If the forwarding destination number 679-1001 is not set, the bell of the telephone terminal TE ₁₁ with the call forwarding function rings, and if the handset 14 is off-hook, the telephone terminal TE ₁₂ can be called.

[0003] If you want to change the transfer arrival number that has been set in the above with call forwarding function telephone terminal TE ₁₁ operates the ten key 17 and call forwarding key 18 of the call forwarding function with a telephone terminal TE ₁₁ again, a new transfer arrival number For example, a telephone terminal TE
You must set the ₁₃ phone number 679-1011.
Therefore, for example, there is a problem that the transfer destination number cannot be changed from the telephone terminal TE ₁₁ having an incoming call forwarding function such as a public telephone and the telephone terminal TE _{14 that} can receive an ISDN network at a remote place.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned disadvantages, and the transfer destination number set by the call transfer key is ISD.
The incoming call forwarding first-arrival number changing means for changing to the new forwarding forwarding first-arrival number according to the operation of the ten-key pad provided on the telephone terminal capable of receiving an incoming call on the N network, and the new forwarding destination last-arrival number changed by the incoming forwarding first-arrival number changing means A telephone terminal with an incoming call forwarding function capable of changing the incoming call destination number set from the telephone terminal with an incoming call forwarding function and the telephone terminal with an incoming call forwarding function by providing a forwarding destination number sending means for sending to the ISDN network The purpose is to provide.

[0005]

A telephone terminal with an incoming call forwarding function according to the present invention has a new one in response to an operation of a ten-key pad provided on the telephone terminal capable of receiving a forwarding destination number set by an incoming call forwarding key on an ISDN network. It is provided with an incoming transfer destination number changing means for changing to the transfer destination number and a transfer destination number sending means for transmitting the new transfer destination number changed by the incoming transfer destination number changing means to the ISDN network.

[0006]

The transfer destination number is set and placed, and the transfer destination number previously set via the ISDN network is transferred to the new transfer destination number by means of the ten key provided on the telephone terminal capable of receiving the call on the ISDN network. When the number is changed, the incoming call from the telephone terminal with the call forwarding function is transferred to the ISDN
The data is transferred to the telephone terminal of the new transfer destination number connected to the network.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the ISDN video conference system according to the present invention will be described in detail below with reference to FIGS. As shown in FIG. 1, a telephone terminal TE ₁ with an incoming call transfer function according to the present invention is equipped with a handset 4, an incoming call transfer key 8 and a numeric keypad 7, and is connected to an ISDN network EX via a DSU.
In addition, the telephone terminal TE ₂ is a telephone terminal TE ₁ with a call transfer function, to which the transfer destination number 679-1001 is set,
The telephone terminal TE ₃ is a telephone terminal with a telephone number of 679-1011, and the public telephone device PE ₁ is a telephone terminal capable of receiving a call on the ISDN network. As shown in FIG. 2, the telephone terminal TE ₁ with the call transfer function has a network interface 1, a codec 2, a voice signal switching circuit 3, a handset 4, a DTMF receiver 5, a voice signal storage circuit 6, a ten-key pad 7, and a call transfer key 8. And the CPU 10 provided with the incoming call mode determination program 9, one side of which is connected to the home terminating device DSU through the terminal T ₁ and the other side of which is the voice signal switching circuit 3 through the codec 2. It is connected to the output side and the input side of the audio signal switching circuit 3 is connected to the handset 4, the DTMF receiver 5 and the audio signal storage circuit 6. Also, the network interface 1, the codec 2, the voice signal switching circuit 3, the DTMF
The control side of the receiver 5 and the voice signal storage circuit 6 is connected to the control side of the CPU 10 to which the ten-key 7 and the incoming call transfer key 8 are connected.

A telephone terminal TE ₁ with a call transfer function having the above configuration
The telephone number TE 679-1001 of the telephone terminal TE ₂ to which the call is transferred when the call transfer destination setting procedure is executed in
Further, it is assumed that a special number corresponding to the personal identification number, for example, # 1234 is set in the subaddress area in the setup message. Here, when an incoming call is received from the public telephone device PE ₁ to the telephone terminal with an incoming call forwarding function TE ₁ when the incoming call forwarding key 8 is not operated, the incoming call mode determination program 9 shown in FIG. 3 is executed. When the incoming call mode determination program 9 is executed, it is determined in the determination box F ₁ whether or not the transfer mode is set, and in the process F ₂ , the normal incoming mode is set and the public telephone device PE ₁ and the telephone terminal TE with the call transfer function are set. ₁ You can talk with each other.

When the call transfer key 8 is operated, the subtelephone number is continuously put from the public telephone device PE ₁ to the telephone number 679-1005 of the telephone terminal TE ₁ with the call transfer function to make a call. I if the subaddress is other than # 1234, for example.
When connecting a public telephone apparatus PE ₁ and call forwarding function with telephone terminal TE ₁ at SDN network EX, then the flow call transfer from the function with the telephone terminal TE ₁ At decision box F ₁ to decision box F _3, in box F ₃ It is determined whether or not there is a special number # 1234 in the incoming sub-address information element in the setup message. # 123 in the incoming sub-address information element
When there is not ₄ , the incoming call is processed by the incoming call transfer procedure of process F ₄ , and the incoming call is transferred to the telephone terminal TE ₂ of the telephone number 679-1001.

When the incoming sub-address information element in the setup message is the special number # 1234, the telephone terminal TE ₁ with the incoming call forwarding function responds, the voice signal switching circuit 3 is controlled by the control of the CPU 10, and the voice signal storage circuit 6 is previously operated. The stored guidance such as “change the call forwarding destination” is sent to the public telephone unit PE ₁ . Call forwarding destination telephone number 67 from the public telephone unit PE ₁ by the PB signal
When 9-1011 is transmitted, the DTMF receiver 5 uses the input incoming call forwarding destination number 679-1011 as the forwarding destination number, and the first forwarding destination number number 679-1001 is the new forwarding destination number 679- Is changed to 1011.

The public telephone device of the above embodiment may be a radio terminal such as an automobile radio device, a cordless telephone terminal, a mobile telephone terminal or the like, and may be connected to an analog public telephone line. Further, if the procedure of the call transfer destination is performed by data communication, the voice signal switching circuit, the DTMF receiver and the voice signal storage circuit can be deleted.

[0012]

As is apparent from the above embodiments, the telephone terminal with the call forwarding function according to the present invention is a numeric keypad provided on the telephone terminal capable of receiving the call forwarding destination number set by the call forwarding key on the ISDN network. The incoming transfer destination number change means for changing to the new transfer destination number according to the operation, and the new transfer destination number changed by the incoming transfer destination number change means ISD
Since the forwarding destination number sending means for sending to the N network is provided, there is an effect that the forwarding destination number set from the telephone terminal with the incoming call forwarding function and the telephone terminal that can receive the ISDN network at a remote place can be changed.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a telephone terminal with a call transfer function according to the present invention.

FIG. 2 is a block diagram showing an embodiment of a telephone terminal with a call transfer function according to the present invention.

FIG. 3 is a flowchart of an incoming call mode determination program used in the telephone terminal with an incoming call forwarding function according to the present invention.

FIG. 4 is a configuration diagram of a conventional telephone terminal with a call transfer function.

[Explanation of symbols]

7- ・ Call-forwarding key 9 --- Call-mode decision program (call-forwarding first-arrival number changing means) 10 --- CPU (forwarding first-arrival number sending means) EX・ ISDN network TE ₁・ ・ ・ ・ ・ ・ Telephone terminal with call forwarding function

Claims (1)

[Claims] 1. A telephone terminal with an incoming call forwarding function, which is connected to an ISDN network and provided with an incoming call forwarding key, and a numeric keypad provided on the telephone terminal capable of receiving the forwarding destination number set by the incoming call forwarding key to the ISDN network. A destination transfer destination number changing means for changing the destination transfer destination number to a new transfer destination number according to the above, and a transfer destination destination number sending means for transmitting the new transfer destination destination number modified by the destination transfer destination number changing means to the ISDN network. A telephone terminal with a call transfer function, which is characterized in that