CN102104809B

CN102104809B - Replacement method and device of PSTN equipment

Info

Publication number: CN102104809B
Application number: CN201010613186.XA
Authority: CN
Inventors: 刘军; 刘开毅; 陈隽
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2010-12-21
Filing date: 2010-12-21
Publication date: 2014-03-05
Anticipated expiration: 2030-12-21
Also published as: CN102104809A

Abstract

The present invention provides a method and device for replacing PSTN equipment. The method includes: obtaining second user data in a second PSTN equipment, the second user data including the correspondence between physical port numbers and user numbers, and the second The user data is converted from the first user data in the first PSTN device; the corresponding relationship between the physical port number and the user number is verified; if the verification is passed, the second user data is activated, and the second user data is deactivated. a user data, and switch the subscriber line corresponding to the user number from the first PSTN device to the second PSTN device.

Description

Replacing method and the device of PSTN equipment

Technical field

The embodiment of the present invention relates to the communication technology, relates in particular to replacing method and the device of a kind of public number switched telephone (PublicSwitch Telephone Network is called for short PSTN) equipment.

Background technology

Now widely used public number switched telephone (Public Switch TelephoneNetwork, be called for short PSTN) in, the subscribers feeder of terminal is generally by main frame (MainDistribution Frame, be called for short M DF) with jumper, be connected to PSTN equipment, PSTN equipment is connected in core net exchange by E1 line or internal bus, every subscribers feeder is corresponding one by one with the Subscriber Number of core net exchange, and the physical port of each PSTN equipment is corresponding one by one with above-mentioned Subscriber Number.In the long-term network operation of operator, when PSTN equipment because of aging, insufficiency of function, capacity not, the reason such as new equipment introduction be when need to change, the physical port comprising in the user data in the new PSTN equipment after replacing and the corresponding relation between Subscriber Number need to and former PSTN equipment in user data in the physical port and the corresponding relation between Subscriber Number that comprise in full accord.

In prior art, the replacing method of PSTN equipment need to be carried out manual connection one by one by subscribers feeder conventionally, then carry out manual test, after completing test, by hand former PSTN equipment and subscribers feeder are disconnected one by one again, by hand subscribers feeder is connected on the new PSTN equipment after replacing one by one, and also need manual test, caused the replacement cost of PSTN equipment high, error rate is higher, efficiency is lower.

Summary of the invention

The embodiment of the present invention provides a kind of replacing method and device of PSTN equipment, in order to reduce the replacement cost of PSTN equipment and to change error rate, improves and changes efficiency.

The embodiment of the present invention provides a kind of replacing method of PSTN equipment, comprising:

Obtain the second user data in the 2nd PSTN equipment, the corresponding relation that comprises physical port number and Subscriber Number in described the second user data, the first user data transaction of described the second user data in a PSTN equipment forms;

Corresponding relation to described physical port number and Subscriber Number is verified;

If be verified, activate described the second user data, first user data described in deexcitation, and subscribers feeder corresponding to described Subscriber Number is switched to described the 2nd PSTN equipment from a described PSTN equipment.

The embodiment of the present invention also provides a kind of more changing device of PSTN equipment, comprising:

Acquisition module, for obtaining the second user data of the 2nd PSTN equipment, the corresponding relation that comprises physical port number and Subscriber Number in described the second user data, the first user data transaction of described the second user data in a PSTN equipment forms;

Authentication module, for verifying the corresponding relation of described physical port number and Subscriber Number;

Handover module, if when the corresponding relation of described physical port number and Subscriber Number is verified for authentication module, activate described the second user data, first user data described in deexcitation, and subscribers feeder corresponding to described Subscriber Number is switched to described the 2nd PSTN equipment from a described PSTN equipment.

As shown from the above technical solution, the embodiment of the present invention is by obtaining the second user data of the corresponding relation that comprises physical port number and Subscriber Number in the 2nd PSTN equipment, corresponding relation to above-mentioned physical port number and Subscriber Number is verified, if be verified, activate above-mentioned the second user data, first user data in deexcitation the one PSTN equipment, and subscribers feeder corresponding to above-mentioned Subscriber Number is switched to above-mentioned the 2nd PSTN equipment from an above-mentioned PSTN equipment.Replacing method and the device of the PSTN equipment that the employing embodiment of the present invention provides, can reduce the replacement cost of PSTN equipment and change error rate, and improving and change efficiency.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

The schematic flow sheet of the replacing method of the PSTN equipment that Figure 1A provides for the embodiment of the present invention one;

The scheme of installation of the more changing device of the PSTN equipment in the replacing method of the PSTN equipment that Figure 1B provides for the embodiment of the present invention one;

The schematic flow sheet of the replacing method of the PSTN equipment that Fig. 2 provides for the embodiment of the present invention two;

A structural representation of the more changing device of the PSTN equipment that Fig. 3 provides for the embodiment of the present invention three;

Another structural representation of the more changing device of the PSTN equipment that Fig. 4 provides for the embodiment of the present invention three;

Another structural representation of the more changing device of the PSTN equipment that Fig. 5 provides for the embodiment of the present invention three.

Embodiment

For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.

The schematic flow sheet of the replacing method of the PSTN equipment that Figure 1A provides for the embodiment of the present invention one, as shown in Figure 1A, the replacing method of the PSTN equipment of the present embodiment can comprise the following steps:

Step 101, obtain the second user data in the 2nd PSTN equipment, the corresponding relation that comprises physical port number and Subscriber Number in above-mentioned the second user data, the first user data transaction of above-mentioned the second user data in a PSTN equipment forms;

Before this step, the method that the 2nd PSTN equipment obtains above-mentioned the second user data can include but not limited to:

A, operating personnel provide the second user data to the 2nd PSTN equipment:

Operating personnel extract the first user data in a PSTN equipment, and above-mentioned first user data are converted to above-mentioned the second user data, and above-mentioned the second user data is input in above-mentioned the 2nd PSTN equipment.

The executive agent of B, this step provides the second user data to the 2nd PSTN equipment:

Can extract the first user data in a PSTN equipment, above-mentioned first user data are converted to above-mentioned the second user data, above-mentioned the second user data is input in above-mentioned the 2nd PSTN equipment.Adopt this method, can avoid operating personnel's operate miss, reduced error rate, reduced the time of user data conversion simultaneously, thereby improved the efficiency of user data conversion.

Particularly, the above-mentioned step that above-mentioned first user data are converted to above-mentioned the second user data can be specifically the first user data extracted from a PSTN equipment (particularly, the first user data of several ten thousand to tens0000 in the one PSTN equipment, have been stored, stored the physical port number of several ten thousand to tens0000 and the corresponding relation of Subscriber Number) in can include a plurality of files, wherein, above-mentioned first user data may include the partial service of more than 30 kind of supplementary service, and each supplementary service also has coactivation and register information (for example: Call Forwarding has just comprised forward mode and transferred number) not to be placed in different files, between each file, can adopt file identification to carry out association.Specifically can corresponding interrelational form be set according to the type of first user data, by the sign of master file, by predetermined association method, find different files, be converted to and the 2nd PSTN equipment the second user data one to one.

Step 102, the corresponding relation of above-mentioned physical port number and Subscriber Number is verified;

Particularly, the physical port that this step specifically can identify above-mentioned physical port number detects, if above-mentioned physical port, in idle condition, can be verified the corresponding relation of above-mentioned physical port number and Subscriber Number; If above-mentioned physical port, in busy condition, re-executes above-mentioned steps 101, obtain the second user data of the corresponding relation that comprises another physical port number and Subscriber Number.

The state of the physical port that above-mentioned physical port number is identified detects, and can avoid using the impact of business.

If step 103 is verified, activate above-mentioned the second user data, the above-mentioned first user data of deexcitation, and subscribers feeder corresponding to above-mentioned Subscriber Number is switched to above-mentioned the 2nd PSTN equipment from an above-mentioned PSTN equipment.

Further, in this step, if checking is not passed through, can revise the above-mentioned physical port number comprising in above-mentioned the second data, re-execute the step in the present embodiment.

It should be noted that: in the present embodiment, above-mentioned steps 101～step 103 is carried out by the more changing device of PSTN equipment.Wherein, a PSTN equipment is the former PSTN equipment before changing, and the 2nd PSTN equipment is the new PSTN equipment of preparing to substitute former PSTN equipment.

In the present embodiment, when the more changing device of PSTN equipment is carried out above-mentioned steps 101 and step 102, impact for fear of the 2nd PSTN equipment on the PSTN equipment moving, can utilize the connection of a circuit separator (can be the soft switch of relay cabinet or veneer) connection subscribers feeder to a PSTN equipment, and the connection of separate users line to the two PSTN equipment.When the more changing device of PSTN equipment is carried out above-mentioned steps 103, utilize the connection of foregoing circuit separator connection subscribers feeder to the two PSTN equipment, and the connection of separate users line to a PSTN equipment.

Further, after the above-mentioned steps 103 of the present embodiment, can also further again to the corresponding relation of above-mentioned physical port number and Subscriber Number, verify, if checking is not passed through, activate above-mentioned first user data, above-mentioned the second user data of deexcitation, and above-mentioned subscribers feeder is switched to an above-mentioned PSTN equipment from above-mentioned the 2nd PSTN equipment.

In the present embodiment, by obtaining the second user data of the corresponding relation that comprises physical port number and Subscriber Number in the 2nd PSTN equipment, corresponding relation to above-mentioned physical port number and Subscriber Number is verified, if be verified, activate above-mentioned the second user data, first user data in deexcitation the one PSTN equipment, and subscribers feeder corresponding to above-mentioned Subscriber Number is switched to above-mentioned the 2nd PSTN equipment from an above-mentioned PSTN equipment.The replacing method of the PSTN equipment that employing the present embodiment provides, can reduce the replacement cost of PSTN equipment and change error rate, and improving and change efficiency.

The specific implementation process of the replacing method of the PSTN equipment that the embodiment of the present invention provides will be introduced in detail below.Before carrying out the replacing of PSTN equipment, need first the more changing device of PSTN equipment to be installed, as shown in Figure 1B.The one PSTN device data output interface of the more changing device of PSTN equipment is received in a PSTN equipment outside line, the 2nd PSTN device data output interface of the more changing device of PSTN equipment is received in the 2nd PSTN equipment outside line, the one PSTN device line interface of the more changing device of PSTN equipment is received between a PSTN equipment and MDF, and the 2nd PSTN device line interface of the more changing device of PSTN equipment is received between the 2nd PSTN equipment and MDF.The default conditions of the more changing device of this PSTN equipment are the second user data deexcitations on the 2nd PSTN equipment, and keep being connected of subscribers feeder and a PSTN equipment and being connected of disconnect user line and the 2nd PSTN equipment.After installing the more changing device of PSTN equipment, can extract the first user data in a PSTN equipment by the user data input interface of a PSTN equipment, above-mentioned first user data are converted to above-mentioned the second user data, and above-mentioned the second user data is input in above-mentioned the 2nd PSTN equipment.

The schematic flow sheet of the replacing method of the PSTN equipment that Fig. 2 provides for the embodiment of the present invention two, the present embodiment is the specific embodiment of a upper embodiment, as shown in Figure 2, the replacing method of the PSTN equipment of the present embodiment can comprise the following steps:

The more changing device of step 201, PSTN equipment obtains the second user data in the 2nd PSTN equipment, the corresponding relation that comprises physical port number and Subscriber Number in above-mentioned the second user data;

In this step, the more changing device of PSTN equipment can, according to the order of the second user data of storing in the 2nd PSTN equipment, obtain the second user data that article one the second user data comprises the corresponding relation of first physical port number and Subscriber Number.

Step 202, according to above-mentioned physical port number, determine corresponding physical port, this physical port is detected, whether detect this physical port in idle condition, if above-mentioned physical port is in idle condition, perform step 203; If above-mentioned physical port, in idle condition (in busy condition), does not perform step 201, in order to obtain next second user data, comprise the second user data of the corresponding relation of next physical port number and Subscriber Number;

Particularly, the more changing device of PSTN equipment, at above-mentioned physical port simulation caller off-hook, tests out the feed voltage of a PSTN equipment outside line, and receives the voice messaging that a PSTN equipment outside line is returned by sensitive resistance.The voice messaging that the more changing device docking of PSTN equipment is received and pre-stored dialing tone information compare, if the two is consistent, illustrate that above-mentioned physical port, in idle condition, performs step 203; Otherwise, the voice messaging receiving and pre-stored wrong message breath are compared, if the two is consistent, subscriber line out of order is described, record this physical port fault, output Trouble Report, otherwise, illustrate that subscribers feeder is busy, record this physical port in busy condition, perform step 201, in order to obtain next second user data, comprise the second user data of the corresponding relation of next physical port number and Subscriber Number.If do not receive the voice messaging that a PSTN equipment outside line is returned, and the feed voltage that does not detect a PSTN equipment outside line, subscriber line out of order is described, record this physical port fault, output Trouble Report.

Alternatively, the more changing device of PSTN equipment can also send to a PSTN equipment order of the above-mentioned physical port state of inquiry, the one PSTN equipment returns to above-mentioned physical port state to the more changing device of PSTN equipment, if above-mentioned physical port, in idle condition, performs step 203; If above-mentioned physical port, in busy condition, performs step 201, in order to obtain next second user data, comprise the second user data of the corresponding relation of next physical port number and Subscriber Number.

The more changing device of step 203, PSTN equipment is verified the corresponding relation of above-mentioned physical port number and Subscriber Number, if by checking, perform step 205; If, by checking, do not perform step 204;

Particularly, the more changing device of PSTN equipment can adopt phone emulation software and hardware, Reality simulation caller, i.e. and the replacing unit simulation caller (utilizing above-mentioned Subscriber Number) of PSTN equipment makes a call from above-mentioned physical port, and call accepted.The caller information that the more changing device docking of PSTN equipment is received and the corresponding relation of above-mentioned physical port number and Subscriber Number compare, if the two is consistent, explanation is verified; Otherwise explanation checking is not passed through.

The more changing device of step 204, PSTN equipment is revised the above-mentioned physical port number comprising in above-mentioned the second data in the 2nd PSTN equipment, to form the corresponding relation of above-mentioned Subscriber Number and new physical port number, re-execute step 201, obtain the second user data that next second user data comprises the corresponding relation of above-mentioned new physical port number and Subscriber Number.

In this step, the more changing device of PSTN equipment further output error is revised report.

The more changing device of step 205, PSTN equipment is carried out cutover flow process, the more changing device that is PSTN equipment activates above-mentioned the second user data, the above-mentioned first user data of deexcitation, and subscribers feeder corresponding to above-mentioned Subscriber Number is switched to above-mentioned the 2nd PSTN equipment from an above-mentioned PSTN equipment;

Particularly, the more changing device of PSTN equipment can be by PSTN equipment the 2nd PSTN device data output interface of more changing device activate above-mentioned the second user data, the above-mentioned first user data of the one PSTN device data output interface deexcitation of more changing device that simultaneously can be by PSTN equipment, and utilize circuit separator to realize subscribers feeder to be switched to above-mentioned the 2nd PSTN equipment from an above-mentioned PSTN equipment.

The more changing device of step 206, PSTN equipment is verified the corresponding relation of above-mentioned physical port number and Subscriber Number, if by checking, perform step 201, the second user data that comprises the corresponding relation of next physical port number and Subscriber Number in order to obtain next second user data, until above-mentioned the second user data is the second user data of the corresponding relation that comprises last physical port number and Subscriber Number, no longer perform step 201, process ends; If, by checking, do not perform step 207;

Step 207, the more changing device of PSTN equipment is carried out and is return flow process, the more changing device that is PSTN equipment activates above-mentioned first user data, above-mentioned the second user data of deexcitation, and above-mentioned subscribers feeder is switched to an above-mentioned PSTN equipment from above-mentioned the 2nd PSTN equipment, execution step 201, the second user data that comprises the corresponding relation of next physical port number and Subscriber Number in order to obtain next second user data, until above-mentioned the second user data is the second user data of the corresponding relation that comprises last physical port number and Subscriber Number, no longer perform step 201, process ends.

Particularly, the more changing device of PSTN equipment can be by PSTN equipment a PSTN device data output interface of more changing device activate above-mentioned first user data, above-mentioned second user data of the 2nd PSTN device data output interface deexcitation of more changing device that simultaneously can be by PSTN equipment, and utilize circuit separator to realize subscribers feeder to be switched to an above-mentioned PSTN equipment from above-mentioned the 2nd PSTN equipment.

Further, the more changing device of PSTN equipment can also further be exported and return analysis of causes report.

In the present embodiment, for each Subscriber Number, can be one by one by obtaining the second user data of the corresponding relation that comprises physical port number and Subscriber Number in the 2nd PSTN equipment, corresponding relation to above-mentioned physical port number and Subscriber Number is verified, if be verified, activate above-mentioned the second user data, first user data in deexcitation the one PSTN equipment, and subscribers feeder corresponding to above-mentioned Subscriber Number is switched to above-mentioned the 2nd PSTN equipment from an above-mentioned PSTN equipment, complete the business of above-mentioned Subscriber Number and the cutover of subscribers feeder.The replacing method of the PSTN equipment that employing the present embodiment provides, does not need operating personnel to participate in automatically completing the replacing of PSTN equipment, can reduce the replacement cost of PSTN equipment and change error rate, and improving and change efficiency.

It should be noted that: for aforesaid each embodiment of the method, for simple description, therefore it is all expressed as to a series of combination of actions, but those skilled in the art should know, the present invention is not subject to the restriction of described sequence of movement, because according to the present invention, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in specification all belongs to preferred embodiment, and related action and module might not be that the present invention is necessary.

In the above-described embodiments, the description of each embodiment is all emphasized particularly on different fields, in certain embodiment, there is no the part of detailed description, can be referring to the associated description of other embodiment.

A structural representation of the more changing device of the PSTN equipment that Fig. 3 provides for the embodiment of the present invention three, as shown in Figure 3, the more changing device of the PSTN equipment of the present embodiment can comprise acquisition module 31, authentication module 32 and handover module 33.Wherein, acquisition module 31 obtains the second user data in the 2nd PSTN equipment, the corresponding relation that comprises physical port number and Subscriber Number in above-mentioned the second user data, and the first user data transaction of above-mentioned the second user data in a PSTN equipment forms; The corresponding relation of 32 pairs of above-mentioned physical port numbers of authentication module and Subscriber Number is verified; When if the corresponding relation of 32 pairs of above-mentioned physical port numbers of authentication module and Subscriber Number is verified, handover module 33 activates above-mentioned the second user data, the above-mentioned first user data of deexcitation, and subscribers feeder corresponding to above-mentioned Subscriber Number is switched to above-mentioned the 2nd PSTN equipment from an above-mentioned PSTN equipment.

The more changing device of the PSTN equipment that in the invention described above embodiment mono-, in method, two, the function of the more changing device of PSTN equipment all can be provided by the embodiment of the present invention is realized.

In the present embodiment, by acquisition module, obtain the second user data of the corresponding relation that comprises physical port number and Subscriber Number in the 2nd PSTN equipment, authentication module is verified the corresponding relation of above-mentioned physical port number and Subscriber Number, if be verified, handover module activates above-mentioned the second user data, first user data in deexcitation the one PSTN equipment, and subscribers feeder corresponding to above-mentioned Subscriber Number is switched to above-mentioned the 2nd PSTN equipment from an above-mentioned PSTN equipment.The more changing device of the PSTN equipment that employing the present embodiment provides, can reduce the replacement cost of PSTN equipment and change error rate, and improving and change efficiency.

Further, for fear of on using the impact of business, the physical port that authentication module 32 in the present embodiment can also identify above-mentioned physical port number detects, if above-mentioned physical port, in idle condition, is verified the corresponding relation of above-mentioned physical port number and Subscriber Number.Concrete detection and description that the step of checking can reference method embodiment.

As shown in Figure 4, the more changing device of the PSTN equipment of the present embodiment can further include modular converter 34, can be for extracting above-mentioned first user data, above-mentioned first user data are converted to above-mentioned the second user data, above-mentioned the second user data is input in above-mentioned the 2nd PSTN equipment, for acquisition module 31, can gets above-mentioned the second user data.The step of concrete conversion can reference method embodiment description.

As shown in Figure 5, the more changing device of the PSTN equipment of the present embodiment can further include modified module 35, if can verify while not passing through for the corresponding relation of 32 pairs of above-mentioned physical port numbers of authentication module and Subscriber Number, revise the above-mentioned physical port number comprising in above-mentioned the second data, for acquisition module 31, can get the second user data of the corresponding relation that comprises above-mentioned new physical port number and Subscriber Number.

Further, authentication module 32 in the present embodiment can also further be verified the corresponding relation of above-mentioned physical port number and Subscriber Number again, if the corresponding relation of 32 pairs of above-mentioned physical port numbers of authentication module and Subscriber Number is verified while not passing through again, handover module 33 in the present embodiment can also further activate above-mentioned first user data, above-mentioned the second user data of deexcitation, and above-mentioned subscribers feeder is switched to an above-mentioned PSTN equipment from above-mentioned the 2nd PSTN equipment.

One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can complete by the relevant hardware of program command, aforesaid program can be stored in a computer read/write memory medium, this program, when carrying out, is carried out the step that comprises said method embodiment; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.

Finally it should be noted that: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.

Claims

1. A method for replacing PSTN equipment, comprising:

Acquire second user data in the second PSTN device, the second user data includes the correspondence between physical port numbers and user numbers, and the second user data is converted from the first user data in the first PSTN device of;

Verifying the correspondence between the physical port number and the user number;

If the verification passes, activate the second user data, deactivate the first user data, and switch the subscriber line corresponding to the user number from the first PSTN device to the second PSTN device.

2. The method according to claim 1, characterized in that before verifying the correspondence between the physical port number and the user number, the method further includes:

Detecting the physical port identified by the physical port number;

If the physical port is in an idle state, verify the correspondence between the physical port number and the user number.

3. The method according to claim 2, wherein the detecting the physical port identified by the physical port number specifically comprises:

Simulate the caller off-hook at the physical port, test the feed voltage of the first PSTN equipment outside line, and receive the voice information returned by the first PSTN equipment outside line;

The received voice information is compared with the pre-stored dial tone information, and if the two are consistent, it means that the physical port is in an idle state.

4. The method according to any one of claims 1 to 3, wherein verifying the correspondence between the physical port number and the user number comprises:

Using the user number to simulate a caller, initiate a call from the physical port, and accept the call;

Comparing the received caller information with the corresponding relationship between the physical port number and the user number, if the two are consistent, it means that the verification is passed; otherwise, it means that the verification is not passed.

5. The method according to claim 1, characterized in that, before obtaining the second user data in the second PSTN device, it also includes:

extracting said first user data;

converting said first user data into said second user data;

Inputting said second user data into said second PSTN device.

6. The method according to claim 1, further comprising: if the verification fails, modifying the physical port number contained in the second data to form the user number and a new Correspondence between physical port numbers.

7. The method according to claim 1, wherein if the verification is passed, activate the second user data, deactivate the first user data, and transfer the user line corresponding to the user number from the After the first PSTN device switches to the second PSTN device, it also includes:

If the verification fails, activate the first user data, deactivate the second user data, and switch the user line from the second PSTN device to the first PSTN device.

8. A replacement device for PSTN equipment, comprising:

An acquisition module, configured to acquire second user data in the second PSTN device, wherein the second user data includes a correspondence between a physical port number and a user number, and the second user data is obtained by the first PSTN device in the first PSTN device. converted from user data;

A verification module, configured to verify the correspondence between the physical port number and the user number;

A switching module, configured to activate the second user data, deactivate the first user data, and switch the corresponding A subscriber line is handed over from said first PSTN device to said second PSTN device.

9. The device according to claim 8, wherein the verification module is also used for

The physical port identified by the physical port number is detected, and if the physical port is in an idle state, the corresponding relationship between the physical port number and the user number is verified.

10. The device according to claim 8, further comprising a conversion module,

It is used for extracting the first user data, converting the first user data into the second user data, and inputting the second user data into the second PSTN device.

11. The device according to claim 8, further comprising a modification module, configured to modify the second data if the verification module fails to verify the corresponding relationship between the physical port number and the user number. The physical port number is included to form a correspondence between the user number and the new physical port number.

12. The device according to any one of claims 8 to 11, wherein the verification module is further configured to re-verify the correspondence between the physical port number and the user number, if the verification module is When the corresponding relationship between the physical port number and the user number fails to be verified again, the switching module is further configured to activate the first user data, deactivate the second user data, and transfer the user line from the The second PSTN device is handed over to the first PSTN device.