JPH0462623B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a connection completion signal sending system in an exchange having a data exchange function.

[Conventional technology]

The conventional connection completion signal transmission method is shown in Figures 2 and 3.
This will be explained using the example shown in the figure. In Figure 2, 1 is a calling terminal, 2 is a calling station, 3 is a relay station, 4 is a receiving station,
5 is a called terminal, and 6 is a relay line connecting the stations. Here, in order to call the called terminal 5, the calling terminal 1 performs an operation to call the called terminal 5 according to a predetermined method, and as shown in FIG. The terminating station 4 is connected to the relay line 6 in sequence, and finally the terminating station 4 connects to the terminating terminal 5.
An incoming call is displayed, and at the same time a ringing signal is sent to the calling station 2.

On the other hand, as shown in FIG. 2, when the called terminal 5 responds to the incoming call, the called station 4 sends a first connection completion signal to the called terminal 5 indicating that the line connection has been completed. Ru. Further, as shown in FIG. 2, a signal is sent from the receiving station 4 to the calling station 2 via the relay station 3 to notify the calling station 2 that the called terminal 5 has responded. from the calling terminal 1 to the 2nd
A connection completion signal was being sent.

[Problems to be solved]

However, a pair of connection completion signals indicating that the connection has been completed are transmitted at different times as described above, and cannot be transmitted to both the calling terminal 1 and the called terminal 5 at the same time. After receiving the first connection completion signal, from the called terminal 5 to the calling terminal 1
If the information is to be sent earlier, the called terminal 5 waits until the second connection completion signal reaches the calling terminal 1.
It was necessary to confirm whether the terminals 1 and 5 have completed the connection by waiting for a certain period of time, or by transmitting and receiving a signal to identify whether or not the connection has been completed, separately from the connection completion signal. This has resulted in problems such as time loss and unnecessary processing at the terminal, which is inconvenient.

[Means for solving problems]

The present invention solves the above problems,
In an automatic switching system with a data exchange function, when a calling terminal calls a called terminal, a call is sent from the receiving station to which the called terminal belongs to the calling station to which the calling terminal belongs, indicating that the called terminal is ringing. Information indicating whether or not to send information from the called terminal to the calling terminal first after the called terminal responds is added to the medium signal, and the called terminal sends information to the calling terminal first. If you do,
When the calling station receives a ringing signal from the receiving station,
This is characterized by sending a connection completion signal to the calling terminal.

〔Example〕

Next, an example thereof will be described with reference to FIGS. 1 to 3.

FIG. 1 is a time chart when information is sent from the called terminal first when an embodiment of the connection completion signal sending method according to the present invention is applied;
Parts corresponding to those in FIGS. 2 and 3 are given the same reference numerals.

In the method of the present invention, the called terminal 4 adds information indicating whether or not to send information first from the calling terminal 1 after the called terminal 4 responds to the paging signal from the called terminal 4. When information is released from 4 first,
Control is performed separately for cases in which information is not issued from the called terminal 4 first.

If the called terminal 4 first sends information,
As shown in FIG. 1, when the calling terminal 1 receives a ringing signal from the calling station 2, it issues a second connection completion signal,
After the called terminal 5 responds, a first connection completion signal is sent to the called terminal 5.

Also, if the information is not sent from the called terminal 4 first,
Just like the conventional case shown in FIG. 3, when the called terminal 5 responds, it first sends the first connection completion signal to the called terminal 5, and then when the calling station 2 receives the response signal, the A second connection completion signal is issued to the call terminal 1.

〔Effect of the invention〕

As explained above, the present invention adds information to the ringing signal indicating whether or not to output information from the calling terminal first after the called terminal responds. If the calling terminal receives a ringing signal at the calling station, it should issue a connection completion signal, and the called terminal should issue a connection completion signal after the called terminal responds. If the calling terminal does not send information first, it will first send a connection completion signal to the called terminal when it responds, and then send a connection completion signal to the calling terminal when the calling station receives the response signal. As a result, when the terminal receives the connection completion signal, the information can be sent immediately, which speeds up the processing time and eliminates the need for the terminal to perform unnecessary processing, making it more efficient. .

[Brief explanation of drawings]

Fig. 1 is a time chart when an embodiment of the connection completion signal sending method according to the present invention is applied and the called terminal does not send information first, and Fig. 2 is a general connection completion signal sending method. A block diagram of a circuit to which this is applied, and FIG. 3 is a time chart of a conventional connection completion method. 1...Calling terminal, 2...Calling station, 3...Relay station, 4...
Receiving station, 5...Calling terminal, 6...Relay line.

Claims (1)

[Claims] 1. In an automatic switching machine with a data exchange function,
When a calling terminal calls a called terminal, the called terminal responds to a ringing signal sent from the receiving station to which the called terminal belongs to the originating station to which the calling terminal belongs, indicating that the called terminal is ringing. After that, information indicating whether or not to send information from the called terminal to the calling terminal first is added, and if the called terminal sends information to the calling terminal first, the calling station sends a ringing signal. A connection completion signal sending method characterized by sending a connection completion signal to a calling terminal when received from a receiving station.