CN1248471C - Method for implementing warm line service based on VOIP gateway - Google Patents

Abstract

The invention discloses a method for realizing the warm line service business based on the Internet voice gateway. The method judges the call request received by the calling voice gateway. If the request is to register the warm line service or cancel the warm line service, then Register the device and destination address that need warm line service in the calling voice gateway or delete the registered device and destination address of warm line service, if the request is a normal call, the calling voice gateway will judge whether the calling device has set the warm line If it has been set, apply for the warm line timer, and when the user fails to enter the called number after the timeout, initiate a call connection with the registered warm line service destination address, complete the Internet phone connection and call process, and then end; otherwise, Initiate a call connection with the destination address number input by the user, complete the connection of the Internet phone and the call process, and then end; the above scheme can provide the user with a more flexible way of using the voice gateway.

Description

Realization method of warm line service business based on Internet voice gateway

technical field

The invention relates to a method for realizing call service in a communication system, in particular to a method for realizing call service based on an Internet voice gateway.

Background technique

With the development of Internet technology, realizing the function of Internet telephony on Internet routers can enable users to complete the transmission of voice information by means of data communication networks, effectively improve the utilization rate of data networks, and increase the types of services provided by the network. Therefore, people It is expected that intelligent voice services can be realized in the network, such as warm line call service. According to the existing method for realizing the call service based on the voice gateway of the wide area network, when a communication device A, such as a telephone, initiates a call request to the voice gateway 1 connected to it, the voice gateway 1 detects the call request of the user, and will This signal is transmitted to the voice processing module on the upper layer of the voice gateway 1. The voice processing module plays a prompt dial tone to the communication device A through the gateway device. After the user enters the destination address information, the information is collected and stored by the voice gateway 1. When the voice gateway 1 After collecting destination address information that can match a destination address, query the corresponding destination network address according to the destination address information, and use this address to initiate an IP call connection to the peer voice gateway 2. When voice gateway 2 receives voice gateway 1 After the call is initiated, a call is initiated to the called communication device B according to the destination address information, and if the called communication device is idle, it will notify that a call request has arrived, otherwise it will feed back the called busy information to the voice gateway 1. In practice, if phone A often needs to call fixed phone C, the hotline service can be realized by registering the hotline number on the port of the voice gateway, but this can only call the fixed hotline service number, which brings inconvenience to calling other phones. Trouble; if you do not register the hotline service, you need to often dial this fixed phone number. From the above-mentioned existing basic call process for completing Internet calls, if you want to facilitate the realization that phone A often calls fixed phone C, you can also call any The requirement of a phone is difficult to do.

Contents of the invention

The purpose of the present invention is to provide a method for realizing the warm line service based on the Internet voice gateway, which can realize the warm line service.

In order to achieve the above-mentioned purpose, the method for realizing the warm line service business based on the Internet voice gateway provided by the present invention includes:

(1) The calling device sends a call request to the calling voice gateway connected to it;

(2) The calling voice gateway judges according to the call request received, if the request is to register the warm line service, go to step (3); if the request is to cancel the warm line service, go to step (4); if the request is For normal calls, go to step (5); if the request is another operation, complete the corresponding operation according to the request, and then end;

(3) Register the called device that needs the warm line service in the calling voice gateway, and register the destination address of the warm line service, and then end;

(4) Delete the registered called device that needs the warm line service in the calling voice gateway, and delete the destination address of the warm line service, and then end;

(5) The calling voice gateway judges whether the calling device has set the warm line service. If it has been set, it applies for the warm line timer. When the user fails to enter the called number after timeout, a call connection is initiated with the registered warm line service , complete the connection and call process of the Internet phone, and then end; otherwise, initiate a call connection with the destination address number input by the user, complete the connection and call process of the Internet phone, and then end.

Since the present invention registers the called device and the destination address that need warm line service on the voice gateway, it can realize the warm line service by using the characteristics of the voice gateway's own hardware and operating system on the basis of ensuring the basic call connection of the voice gateway. Combining the hotline service with the normal call method, you can also use the call device connected to the port to complete the registration and cancellation of the intelligent business operation of the hotline service, which expands the scope of application and provides users with more flexible usage methods.

Description of drawings

Fig. 1 is the flow chart of the embodiment of the method of the present invention;

Fig. 2 is a schematic diagram of the principle of the present invention.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings.

In order to realize the problem of combining the hotline method and the ordinary dialing method in the voice gateway, the method of warm line registration in the voice gateway can be adopted, so that if the user does not enter any number within a certain period of time, the user will be disconnected after the timeout. Make a call using a registered number. Taking Figure 2 as an example, if the destination address of the warm line service of communication device A is the address of communication device C, when the calling communication device A initiates a call, if the calling communication device A has registered the warm line service at this time, the master The calling device A applies for a warm line service timer. If the calling device A dials a new phone number within the set time, assuming it is the number of the communication device B, the voice gateway 1 will communicate with the voice gateway through the IP network. 2. Initiate a call to communication device B. If calling device A does not make a new call within the set time, voice gateway 1 initiates a call to communication device C through the IP network and voice gateway 2 after the timer expires.

Fig. 1 is a flowchart of an embodiment of the method of the present invention. According to Figure 1, the present invention includes three main parts, one is the operation of registering the warm line service and destination address of the equipment, the other is canceling the registered warm line service equipment and destination address, and the third is the processing of the warm line service. The voice gateway described in the embodiment shown in Fig. 1 is not limited to the voice gateway in practice, and can also be any equipment that provides voice over network (VOIP/VOFR) services, such as equipment that includes a voice over network call connection control function module, the equipment Can provide the ability to detect dual-tone multi-frequency (DTMF) numbers, so that when the communication device that initiates a call outputs a DTMF number, it will pass the recognized DTMF number to the voice gateway for processing, and the network voice call connection control function module of the voice gateway According to the received DTMF number, it can identify whether to register the warm line service, cancel the warm line service or a normal call, so as to complete the operation specified by the user.

First, the calling device sends a call request to the calling voice gateway connected to it in step 1; the calling voice gateway judges according to the received call request in step 2, if the request is for other operations, then completes the corresponding operation according to the request in step 3 operation, and then end; if the request is to register the warm line call service, proceed to step 5, register the calling device of the warm line service in the status description table of the calling voice gateway, and register the destination address of the warm line service, and then end ;In this way, when the calling device dials within a certain period of time after sending out the request, the connection will be initiated with the input number as the destination number; if there is no dial within a certain period of time, after timeout, the preset warm line Initiate a connection for the destination number. If the request sent by the user in step 1 is to cancel the warm line service, go to step 6, delete the registered calling device that needs the warm line service in the status description table of the calling voice gateway, and delete the destination address of the warm line service , and then end; if the request sent by the user in step 1 is a normal call, then in step 4 the calling voice gateway judges whether the calling device that initiates the call has registered for the warm line service, if not registered for the warm line service, then in step 4 Step 13 carries out the usual call operation; if the warm line service is registered, apply for the warm line service timer and set the timing time for the calling device in step 7, start the timing operation, and then continue to judge whether the calling user has passed the main line in step 8. Call the device to input the phone number, if the user has input the calling number, then receive the input number in step 9, then initiate a call connection with this number in step 12, thereby completing the connection process of the network phone and realizing network phone communication. If it is judged in step 8 that the calling user does not input the phone number by the calling device, then in step 10 it is judged whether the timer is overtime, if not overtime, then wait for the user to input, then turn to step 8 to continue judging, if overtime then in step 11 with The registered warm line service destination number is used as the destination number of this call, and then in step 12, a call connection is initiated with this warm line number, thereby completing the connection process of the Internet phone and realizing Internet phone communication.

In the embodiment shown in Figure 1, the registration of the warm line service and the cancellation of the warm line service of the device are realized by setting a specific function code, which is realized through the input key sequence of the device, for example, the calling device enters "*52*ABCD #", where *52* represents the function key for registering the warm line service, and ABCD represents the destination address of the calling device's warm line service, that is, the called number. The length of this destination address is not fixed and limited to 4 digits, and it can be a voice gateway A valid destination address inside the device, # represents the end of input. The voice gateway device detects the "*52*ABCD#" number sequence input by the user on the voice port, and records in the status description table of the voice gateway that the calling device has registered for the warm line service, and at the same time records the purpose of the warm line service The address is the called number ABCD. In this example, only one warmline service number can be set on each physical port of the voice gateway. If the warmline service function and warmline service number have been registered before, after multiple registrations The registered warmline service number is the last successfully registered warmline service number. If the calling device enters #52# to indicate cancellation of the warm line service, the voice gateway detects the #52# number sequence input by the calling device, clears the warm line service registered by the device in the status description table, and deletes the recorded warm line The service destination address is cleared, and the normal state is restored.

The following is another specific embodiment. Assume that device A is a phone A with a number of 2327, device B is a phone B with a number of 2967, device C is a phone C with a number of 2958, and set the warmline service function key sequence to 52. Assuming that the user uses phone A to input "*52*2958#", after the setting is successful, a ringback tone is heard in the handset, which notifies the user that the setting is successful. When the user uses phone A, hears the dial tone after picking up the phone, and enters the phone number 2967, the calling voice gateway will initiate a call to the called voice gateway after collecting the number 2967, and the called voice gateway will complete the call to phone B after receiving the call request. call. Assuming that the user does not enter the phone number after the set time (for example, 10 seconds) after picking up phone A, the calling voice gateway will connect to phone C with the number 2958 according to the warm line service number 2958 set by calling phone A. The called voice gateway initiates a call, thus entering the call process.

In a word, by adopting the present invention, the warm line service function of the equipment can be set and canceled at will, and the warm line service can be provided for the equipment for which the warm line service is set.

Claims (1)

1. A method for realizing warm line service based on an Internet voice gateway, comprising: (1) The calling device sends a call request to the calling voice gateway connected to it; (2) The calling voice gateway judges according to the call request received, if the request is to register the warm line service, go to step (3); if the request is to cancel the warm line service, go to step (4); if the request is For normal calls, go to step (5); if the request is another operation, complete the corresponding operation according to the request, and then end; (3) Register the called device that needs the warm line service in the state description table of the calling voice gateway, and register the destination address of the warm line service, and then end; (4) delete the registered called device that needs the warm line service in the state description table of the calling voice gateway, and delete the destination address of the warm line service, and then end; (5) The calling voice gateway judges whether the calling device has set the warm line service according to the state description table. If it has been set, it applies for the warm line timer. The registered warm line service destination address initiates a call connection, completes the Internet phone connection and call process, and then ends; otherwise, initiates a call connection with the destination address number entered by the user, completes the Internet phone connection and call process, and then ends.

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