CN100499723C - Method for sending intelligent public telephone calling charge - Google Patents

Abstract

The invention discloses a method for issuing smart public phone call charges. The attribute of the smart public phone service access code prefix is set in advance on the calling end office LS and the service switching point SSP as the called party control release mode. The method at least includes the following steps: A. After the SSP receives the user's on-hook signal, it reserves the call path between the calling phone and the SSP, and disconnects the called party at the same time; B. The SSP reports the bill information to the service control point SCP, and the SCP issues the call Charges to the calling phone. The invention provides a method for issuing call charges for smart public telephones. The callee control method is adopted, and the user call and charge are issued in one call, which greatly reduces the time delay for issuing call charges and can quickly issue smart public telephones. call charges.

Description

A method for issuing smart public phone call charges

technical field

The invention relates to the service technology of an intelligent public phone, in particular to a method for issuing call charges of an intelligent public phone.

Background technique

The intelligent network is a concept proposed by the International Telecommunication Union Standardization Organization (CCITT) in 1992. It is a network system that can quickly, conveniently, flexibly, economically and effectively generate and realize various new services. According to the regulations of my country's intelligent network system, my country's intelligent network adopts a network system based on the business switching point SSP. Service switching point SSP, service control point SCP, service data point SDP, service management system SMS, service generation environment SCE, service management access device SMAF and intelligent peripheral IP are configured in the network, and through the NO.7 signaling network Form a national intelligent network.

Intelligent public telephone service is a public telephone service that relies on an intelligent network platform to complete the processes of connection, billing, and control. It combines the billing and routing advantages of the card number service and the easy-to-use features of the IC card, and completes the public telephone service through the cooperation of the corresponding IC card public telephone terminal. Its biggest advantage is that the authentication of the card is on the intelligent network platform instead of the IC phone terminal, which effectively improves the anti-theft calling capability of the public phone. At present, among the public telephone services in my country, manned public telephones account for the vast majority, and unattended public telephones including coin-operated, magnetic card, and IC card public telephones account for a relatively small proportion. Compared with the traditional non-smart public phone service, the smart public phone service can effectively eliminate problems such as inaccurate billing, fraudulent calls, and illegal high charges, and can realize professional management of public phones.

The call charge issued in the smart public phone service is related to the call control mode. According to the switching equipment specification, there are three call control modes: calling control mode, called control mode and mutual non-control mode.

Among them, in the called control mode, the release of the call is controlled by the called party, and the control process is as follows: after the call ends, if the calling party hangs up, all trunks, including the calling end office (LS) to the called party After the caller picks up the phone again, he can still continue talking with the called party; only when the called party hangs up, can all the intermediate offices that the call pass through can release the backward call.

As shown in FIG. 1, FIG. 1 is a signaling flow chart of the called control mode. After the call ends, if the calling party hangs up, the calling LS sends the calling party hanging up signal CCL to the SSP, and the SSP receives the signal CCL, and temporarily suspends the voice channel between the calling phone and the SSP; Send the forward recovery signal RES and the re-answer signal RAN, the SSP receives the signals RES and RAN, and re-enables the voice path between the calling phone and the SSP. If the called party hangs up, the called LS sends a release signal REL to the SSP, and then releases the entire session.

In the intelligent network system, the SSP is located between the calling LS and the called LS. Therefore, using the called party control method, the actions of the calling party on-hook and off-hook can meet two requirements at the same time: the action of the calling party on-hook does not really Hang up the phone line, but temporarily suspend the phone line, and reserve the phone line for issuing call charges; the caller picks up the phone, re-enables the call line, and the SCP issues call charges to the calling phone.

In the so-called non-control mode, both the calling party and the called party do not control the release of the call, and if either party hangs up, the call is released. At present, in some local networks, integrated services digital networks (ISDN) and mobile networks, the mode of mutual non-control is adopted.

In the prior art, the call charge of the smart public phone is issued, and the call control method adopted is a mutual non-controlling method. As shown in Figure 2, Figure 2 is a flow chart of a method for issuing smart public phone call charges in the prior art, and the method includes the following steps:

Steps 201-202: After the call ends, when the calling party hangs up, the calling party LS sends the user's on-hook signal CCL to the SSP;

Step 203: The SSP receives the user on-hook signal CCL sent by the calling LS, and releases the entire voice path;

Steps 204-205: The caller automatically goes off-hook, dials the access code of the intelligent network system, and triggers the intelligent public telephone service;

Step 206: the smart public phone service is triggered, and the voice path between the calling phone and the SCP is connected;

Steps 207-208: SSP reports the bill information to the SCP, and the SCP sends the bill to the calling phone, and sends the call fee to the calling phone;

Step 209: The calling phone reports the bill confirmation information to the SSP;

Step 210: The SSP sends a release signal REL signaling to the calling phone, and then releases the voice path between the SSP and the calling phone, disconnecting the calling phone.

In the above call control mode without mutual control, after the call ends and the user hangs up, the voice channel is released immediately. In order to issue the call fee, the calling phone needs to initiate a call operation again to reconnect the voice channel. The call process and the process of issuing call charges are carried out in two calls respectively, and the release of the call channel and the reconnection of the call channel are time-consuming. Generally speaking, it takes 2 seconds to release a voice channel, 2 seconds to reconnect a voice channel, 2 seconds to data exchange and signaling delay, and 0.8 seconds to display a call charge, totaling 6.8 seconds.

Therefore, after the call ends, the time delay for sending the call charge to the phone is relatively long, and the user needs to wait for a certain period of time, which increases the settlement time of the watcher and reduces user satisfaction and the utilization rate of the phone.

Contents of the invention

In view of this, the main purpose of the present invention is to provide a method for issuing call charges of smart public phones, which reduces the delay in issuing call charges and quickly issues call charges of smart public phones.

In order to achieve the above object, the present invention provides a method for issuing smart public phone call charges, the key is to pre-set the attribute of the smart public phone service access code prefix on the calling end office LS and the service switching point SSP For the called party to control the release mode, the method at least includes the following steps:

A. After the SSP receives the user's on-hook signal, it reserves the call path between the calling phone and the SSP, and disconnects the called party at the same time;

B. The SSP reports the bill information to the service control point SCP, and the SCP issues the call fee to the calling phone.

In the above scheme, if the user on-hook signal described in step A is the caller's on-hook signal CCL, then step A further includes:

A1. After receiving the caller's on-hook signal CCL, the SSP temporarily suspends the call between the calling phone and the SSP;

A2. After the SSP receives the forward recovery signal RES and the re-answer signal RAN generated by the caller's automatic off-hook, it re-enables the call path between the caller's phone and the SSP;

A3. The SSP sends a release signal REL to the called phone, and forwardly releases the voice path between the SSP and the called phone.

In the above scheme, if the user on-hook signal described in step A is the called on-hook signal CBK, then step A further includes:

AI and SSP receive the called on-hook signal CBK, and at the same time the called LS releases the voice channel between the called phone and the SSP;

After AII and SSP receive the caller's on-hook signal CCL, temporarily suspend the voice path between the calling phone and SSP;

AIII. After the SSP receives the forward resume signal RES and the re-answer signal RAN generated by the caller's automatic off-hook, it re-enables the call path between the caller's phone and the SSP.

In the above-mentioned scheme, described step B further comprises:

B1. The SSP reports the bill information to the service control point SCP;

B2. The SCP sends the bill to the calling phone, and sends the call fee to the calling phone;

B3. The calling phone reports the bill confirmation information to the SSP;

B4. The SSP sends a release signal REL, and then releases the voice path between the SSP and the calling phone, disconnecting the calling.

Therefore, the method for issuing smart public phone call charges provided by the present invention adopts the called control method without changing the user's usage habits, and the user's call and charge are issued in one call, which greatly reduces the call charge The delay of sending to the phone reduces the time for users to wait for the fee, thereby shortening the settlement time of the on-duty person, and improving user satisfaction and the utilization rate of the phone. In addition, the method interacts through the standard NO.7 signaling protocol, does not require switches to additionally support special signaling, has no special requirements on network equipment, and has low implementation cost.

Description of drawings

Fig. 1 is the signaling flowchart of the called control mode;

Fig. 2 is the flow chart of the method for issuing smart public phone call charges in the prior art;

Fig. 3 is the flow chart of the method for sending smart public phone call charges under the situation that the calling party hangs up first in the present invention;

Fig. 4 is a flow chart of the method for issuing smart public phone call charges under the condition that the called party hangs up first according to the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the following examples are given and the present invention is further described in detail with reference to the accompanying drawings.

The present invention provides a method for issuing smart public phone call charges. In the smart public phone service, the called party control mode is adopted. After the call ends, the caller hangs up the phone line instead of actually hanging up the phone line, but suspends the phone line temporarily. The voice channel is reserved for issuing call charges; the caller automatically picks up the phone, re-enables the voice channel, and the intelligent network system issues call charges to the calling phone.

The present invention needs to pre-set the attribute of the access code prefix of the intelligent public telephone service on the calling LS and SSP as the "called control" release mode. After the setting is completed, the smart public phone service can use the called control method to issue the call charges of the smart public phone.

Please refer to Fig. 3, Fig. 3 is the flow chart of the method for issuing smart public phone call charges under the situation that the calling party hangs up first in the present invention, and the method includes the following steps:

Steps 301-302: After the call is over, the calling party first hangs up, the calling LS sends the calling party's on-hook signal CCL to the SSP, and the SSP receives the calling party's on-hook signal CCL, and temporarily suspends the voice path between the calling phone and the SSP;

Steps 303-304: The calling party automatically goes off-hook, the calling LS sends a forward recovery signal RES and a re-answering signal RAN to the SSP, and the SSP receives the signals RES and RAN, and re-enables the call path between the calling phone and the SSP;

Step 305: the SSP sends a release signal REL to the called phone, forwardly releases the voice path between the SSP and the called phone, and disconnects the called;

Steps 306-307: SSP reports the bill information to the SCP, and the SCP sends the bill to the calling phone, and sends the call fee to the calling phone;

Step 308: The calling phone reports the bill confirmation information to the SSP;

Step 309: The SSP sends a release signal REL to the calling phone, and then releases the voice path between the SSP and the calling phone, disconnecting the calling phone.

The foregoing embodiment is a preferred embodiment in the case that the calling party hangs up first. If the called party hangs up first, please refer to Fig. 4, Fig. 4 is the flow chart of the method for issuing smart public phone call charges under the situation of the called party hangs up first in the present invention, the method comprises the following steps:

Steps 401-402: After the call ends, the called party hangs up first, and the called LS sends the called user's hang-up signal CBK to the SSP, and at the same time, the called LS releases the voice channel between the called LS and the SSP, and disconnects the called party;

Steps 403-404: the calling party hangs up, the calling LS sends the calling user's on-hook signal CCL to the SSP, and the SSP receives the calling party's on-hook signal CCL, and temporarily suspends the voice path between the calling phone and the SSP;

Steps 405-406: The calling party automatically goes off-hook, and the calling LS sends a forward restoration signal RES and a re-answering signal RAN to the SSP, and the SSP receives the signals RES and RAN, and re-enables the call path between the calling phone and the SSP;

Steps 407-408: SSP reports the bill information to the SCP, and the SCP sends the bill to the calling phone, and sends the call fee to the calling phone;

Step 409: The calling phone reports the bill confirmation information to the SSP;

Step 410: The SSP sends a release signal REL to the calling phone, and then releases the voice path between the SSP and the calling phone, disconnecting the calling phone.

In the above two preferred embodiments, the user call and the payment of the charge are completed in one call, and the user does not need to make a second call to issue the call charge. Compared with the mutual non-control mode adopted in the prior art, there is no need to release and reconnect voice channels, which greatly speeds up the delivery of call charges. Among them, the on-hook delay takes 0.6 seconds, the data interaction and signaling delay takes 0.4 seconds, and the call fee display takes 0.8 seconds, a total of 1.8 seconds.

The invention provides a method for issuing smart public telephone call charges. On the basis of not changing the user's usage habits, the called control method is adopted. The user call and the charge are issued in one call, which greatly reduces the call charge issue. The delay to the phone can reduce the time for users to wait for charges, thereby shortening the settlement time of the on-duty person, and improving user satisfaction and phone utilization. In addition, the method interacts through the standard NO.7 signaling protocol, does not require switches to additionally support special signaling, has no special requirements on network equipment, and has low implementation cost.

The specific embodiments described above have further described the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above descriptions are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (4)

1. A method for issuing smart public phone call charges, characterized in that the attribute of the smart public phone service access code prefix is set to the called control release mode on the calling end office LS and the service switching point SSP in advance , the method includes at least the following steps: A. After the SSP receives the user's on-hook signal, it reserves the call path between the calling phone and the SSP, and disconnects the called party at the same time; B. The SSP reports the bill information to the service control point SCP, and the SCP issues the call fee to the calling phone. 2. The method according to claim 1, wherein if the user on-hook signal in step A is the caller on-hook signal CCL, then step A further includes: A1. After receiving the caller's on-hook signal CCL, the SSP temporarily suspends the call between the calling phone and the SSP; A2. After the SSP receives the forward recovery signal RES and the re-answer signal RAN generated by the caller's automatic off-hook, it re-enables the call path between the caller's phone and the SSP; A3. The SSP sends a release signal REL to the called phone, and forwardly releases the voice path between the SSP and the called phone. 3. The method according to claim 1, wherein if the user on-hook signal in step A is the called on-hook signal CBK, step A further includes: A I, SSP receive the called on-hook signal CBK, and the called LS releases the voice path between the called phone and the SSP backwards at the same time; A II. After receiving the caller's on-hook signal CCL, the SSP temporarily suspends the call between the calling phone and the SSP; A III. After the SSP receives the forward recovery signal RES and the re-answer signal RAN generated by the caller's automatic off-hook, it re-enables the call path between the caller's phone and the SSP. 4. The method according to claim 1, wherein said step B further comprises: B1. The SSP reports the bill information to the service control point SCP; B2. The SCP sends the bill to the calling phone, and sends the call fee to the calling phone; B3. The calling phone reports the bill confirmation information to the SSP; B4. The SSP sends a release signal REL, and then releases the voice path between the SSP and the calling phone, disconnecting the calling.

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