JPH0779383B2 - Pseudo call test method - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a pseudo call test system in which a pseudo call is made to a switch under test to mutually confirm a connection partner.

[Conventional technology]

Conventionally, in this kind of pseudo call test device for testing the operation of the exchange, a transmission number is set for each calling line, and when a pseudo call is generated from each calling line to the exchange under test,
It is generally performed to confirm that the ratio of call loss or fault handling calls is within a specified value.

By the way, in recent exchanges, the exchange control is based on the so-called stored program control method, and it is not enough to apply a simple overload to evaluate the connection quality of the exchange. Is mandatory. As a train confirmation method after connection, for example, manually, or by sending a connection confirmation sound from the called terminal to the calling terminal and receiving and identifying this at the calling side, Alternatively, as disclosed in Japanese Patent Laid-Open No. 119256/58, there is known a method in which a synthetic sound or a code string signal is transmitted to a connecting speech path and the result is confirmed.

[Problems to be solved by the invention]

However, in the above-mentioned train confirmation methods, no consideration has been given to the fact that the sending side and the receiving side of the pseudo call test apparatus mutually confirm the partner number. In order to judge the quality of connection, it is necessary to mutually confirm the connection partner in both directions.

Therefore, an object of the present invention is to provide a pseudo call test system in which the calling side and the receiving side can confirm the called number and the calling number after the connection is completed.

[Means for solving problems]

The above purpose is to send the calling number as a PB signal from the calling side to the called side after the connection with the called side is completed by the pseudo call from the calling side to the exchange under test, and the receiving side identifies it. Then, the called number is sent from the called side to the calling side as a PB signal, and the receiving side identifies the reception number.

[Action]

Whether the calling number from the calling side is surely received by the called side through the exchange under test, and whether the called number from the called side is surely received by the calling side through the exchange under test. If the determination is made, the quality of the connected speech path can be evaluated.

〔Example〕

 The present invention will be described below with reference to the accompanying drawings.

The figure shows the relationship between the structure of the pseudo call device according to the present invention and the switch under test of the pseudo call device. In the figure, 1 is a pseudo call device, 2 is a switch under test, 11 is a transmitting circuit, 12 is a PB signal sending circuit, 13 is a PB signal receiving circuit, and 14 is a control circuit.
Reference numerals 15 respectively indicate incoming circuits.

In the pseudo call test system according to the present invention, the originating and receiving numbers are transmitted and received between the originating circuit 11 side and the receiving circuit 15 side through the exchange under test 2 by PB signals to confirm the connection destination. The quality of the connected speech path is confirmed by.

Here, the sending and receiving of the calling number is carried out by sending the calling subscriber number as a PB signal from the PB signal sending circuit 12 of the pseudo call device 1 and the calling side including the sending circuit section 11 to the exchange under test 2 and sending the sending signal. Reception is performed by the receiving side including the incoming circuit 15 and the PB signal receiving circuit 13. The receiving subscriber number is sent to the exchange under test as a PB signal with a time difference from the calling subscriber number, and the sending signal is received by the sending side. It is possible to easily make a time difference between the transmission signals on the transmission side and the reception side by simply registering the control procedure in the control circuit 14 in advance. Further, by collating these transmission / reception signals with the control circuit 14, the connection partner can be easily confirmed.

That is, the sending circuit 11 and the receiving circuit are exchanged via the exchange under test 2.
When the connection with 15 is completed, PB is controlled by the control circuit 14.
At the same time that the signal transmission circuit 12 and the transmission circuit 11 are connected,
The PB signal receiving circuit 13 and the incoming circuit 15 are connected to each other, and an outgoing number is transmitted and received.

Next, under control of the control circuit 14, the PB signal receiving circuit 13 and the transmitting circuit 11 are connected, and at the same time, the PB signal transmitting circuit 12 and the receiving circuit 15 are connected, and the called number is transmitted and received. Has become. By comparing and collating each received number with the sending number in the control circuit 14, not only the connection partner can be confirmed but also the quality of the connected speech path can be evaluated. If a wrong connection, a cross-link, or a one-way call occurs on the exchange under test 2 side, the pseudo call device 1 side can easily determine that fact and the connection quality can be evaluated based on this.

〔The invention's effect〕

As described above, according to the present invention, the connection quality is evaluated for each outgoing call, and it is possible to detect crosstalk, erroneous contact, and failure of one-way communication. Further, the voice of the connected communication path which has been conventionally manually performed. By using the PB signal as a substitute for the confirmation by, there is an effect that the test efficiency can be improved.

[Brief description of drawings]

FIG. 1 is a diagram showing the relationship between the configuration of the pseudo call device according to the present invention and the exchange under test of the pseudo call device. DESCRIPTION OF SYMBOLS 1 ... Pseudo call device, 2 ... Switch under test 11 ... Sending circuit, 12 ... PB signal sending circuit 13 ... PB signal receiving circuit 14 ... Control circuit, 15 ... Incoming circuit

Claims (1)

[Claims] 1. A pseudo call test comprising a switch under test and a pseudo call device for generating a pseudo call, wherein the pseudo call device tests the operation of the switch by generating a pseudo call to the switch under test. In the system, the pseudo call device, a sending circuit unit and a receiving circuit unit respectively connected to the switch under test, a PB signal sending circuit unit, a PB signal receiving circuit unit,
Switching for selectively supplying the output of the PB signal transmitting circuit section to either the transmitting circuit section or the receiving circuit section and selectively supplying the output of either the transmitting circuit section or the receiving circuit section to the PB signal receiving circuit section Section and a control circuit section for controlling each section, and after connecting the transmitting circuit section and the incoming circuit section via the exchange under test, the control procedure registered in advance in the control circuit section Based on the switching unit, the PB signal transmission circuit unit and the transmission circuit unit are connected, and at the same time, the PB signal reception circuit unit and the reception circuit unit are connected and the calling subscriber number is set.
It transmits and receives as a PB signal, and then, with a time difference,
At the same time that the PB signal receiving circuit unit and the transmitting circuit are connected, the PB signal transmitting circuit unit and the receiving circuit unit are connected, and the called subscriber number is transmitted and received as a PB signal. The respective PB signals supplied through the exchange are respectively received and identified, and the outgoing subscriber number and the incoming subscriber number respectively sent out are collated with the control circuit section to obtain the outgoing subscriber number. Is received through the exchange under test and whether the called subscriber number is received through the exchange under test.