JPH0370294A - Incoming subaddress dial system - Google Patents

Abstract

PURPOSE:To eliminate need for consideration as to whether an incoming subaddress is required for an opposite party making a phone call by judging the propriety of the incoming subaddress from an exchange side with an incoming number and informing it from the exchange to a caller in a message. CONSTITUTION:When a caller 10 dials an incoming number to call a called party, the incoming number is received by a register 13 and informed to a CPU 15. When the CPU 15 judges the incoming number that the incoming subaddress is required, an ANT 14 is connected to a caller 10 to urge the dialing of incoming subaddress. Thus, the caller 10 recognizes the necessity of the dial of the incoming subaddress and dials the incoming subaddress of the called party. The information is received by the register 13, resulting that the CPU 15 acquires the incoming number and the incoming subaddress. Thus, an outgoing LS 3 sends dial information (incoming number + incoming subaddress) identifying the called party connecting to a PBX 4 via a public network 2 to the PBX 4 from an incoming LS 6.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention is an IS system capable of receiving a called number and a called subaddress.
This relates to a dialing method in a DN exchange.

(Prior Art) Conventionally, as methods for identifying subscribers of a PBX, LAN, or other network in an ISDN exchange, there are two known methods: one using a called number and the other using a called subaddress.

(Problem to be solved by the invention) In the conventional system that uses the called number, the user of the calling terminal (
For example, when a subscriber (hereinafter referred to as the calling party) calls a subscriber (hereinafter referred to as the called party) on a PBX (private branch exchange I), the called party number must be followed by the called subaddress.
There was the inconvenience of having to always be aware of the person you are calling and consider whether or not there is a sub-address.

(Means for Solving the Problems) Therefore, the present invention provides a called subaddress dialing method for an ISDN exchange in which the exchange determines whether or not a called subaddress is necessary based on the called party number, and notifies the calling party by a message. Specifically, when receiving a called party number sent from a calling terminal, if a called subaddress is not sent even though a called subaddress is required, a message prompting the user to dial the called subaddress. is sent from the exchange to the calling terminal, and the calling party is made to dial the called subaddress, thereby making the number dialed by the calling party the called subaddress that was not obtained.

(Example) Next, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic diagram of a communication path network to which the present invention is applied, and FIG. 2 is a configuration diagram of an exchange when implementing the called subaddress dialing system according to the present invention.

First, as shown in Figure 1, caller 1 uses the calling LS of public
The currently called party 5 to whom the calling party 1 calls is accommodated in the PBX 4, and the PBX 4 is connected to the terminating LS 6 of the public network 2.

The switching equipment shown in FIG. 2 is used for the originating LS3.

In FIG. 2, a calling party 10 is connected to an interface circuit 1
1 to switch 12, and switch 1
2 has register 13 and announcement drink (
(hereinafter abbreviated as ANT) 14 is accommodated, and all of these are controlled by a central control unit (CPU) 15.

When the caller IO picks up the phone, it is detected by the interface circuit 11, and the CPU 15 switches the switch 1.
2 to connect the register 13 and send out a dial tone to the calling party IO. When the calling party 10 dials the called number to call the called party, this called number is received by the register 13 and notified to the CPU 15. If the CPU 15 determines that a called subaddress is necessary from this called party number, the CPU 15 sends the calling party 1
ANT to prompt dialing of the subaddress called 0.
Connect 14. As a result, the calling party 10 knows that it is necessary to dial the called subaddress, and dials the called party's called subaddress. This information is received by register 13, and as a result, CPU 15 obtains the called party number and called subaddress.

As a result, the originating LS (code 3) shown in FIG.
The dialing information (terminating subaddress of the terminating number 10) for identifying the called party connected to the LS 4 can be sent from the terminating LS 6 to the PBX 4 via the public network 2. Note that the CPU 15 has a function that allows the calling party to obtain called sub-address information if the caller dials the called sub-address in advance without waiting for a message. Therefore, messages are sent when necessary, but in addition to this, messages are sent every time a called party number is received, and the caller is alerted to whether or not a called party subaddress is required, and when it is not needed, a general You may also dial the "#" code. Furthermore, in the above embodiment, the case of a general terminal was explained as an example, but the ISDN
Of course, it is also possible to use an ISDN terminal with an interface.

(Effects of the Invention) As explained above, according to the present invention, the exchange side determines whether or not a called subaddress is necessary based on the called party number, and the exchange informs the caller by message, so the caller can make a telephone call. This has the effect of eliminating the need to consider whether a destination sub-address is required for each party you are trying to call.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of a communication path network to which the present invention is applied, and FIG. 2 is a configuration diagram of an exchange when implementing the called subaddress dialing system according to the present invention. 1.10... Caller, 2... Public network, 3... Calling L
S, 4...PBX, 5...Called party, 6...Destination LS
. II... Interface (i2 circuit, 12... Switch, 13... Register, 14... ANT, 15
...CPU.

Claims (1)

[Scope of Claims] In an ISDN exchange capable of receiving a called number and a called subaddress, when the dialing information sent from a calling terminal is only the called number even though a called subaddress is necessary, the exchange dials the called subaddress. A called subaddress dialing system that sends a message prompting the calling terminal to the calling terminal, and receives complete dialing information from the calling terminal directly at the exchange.