CN1501651A - Call routing method in frame relay voice network - Google Patents

Abstract

The invention relates to a call intelligent path choosing method in frame relay voice network which comprises, obtaining matching reference value to the dialing homologue member configured by the user, then selecting calls according to the path selection priority level of the dialing homologue member, wherein the one having higher order of precedence is selected in priority, when the dialing homologue member having higher order of precedence fails to make a call, calls will be made through the dialing homologue member having lower order of precedence, until the call is made successfully or all the dialing homologue members are selected. The method by the invention can improve call completing rate.

Description

Call routing method in the voice over frame relay network

Technical field

The invention belongs to the voice over frame relay networking technology area, particularly the call routing method in the voice over frame relay network.

Background technology

Frame-relay network is a kind of network of point-to-point, in large-scale VOFR (VOICE OVERFRAME RELAY voice over frame relay) network, be necessary for every telephone number and the Dial-Peer that arrives these telephone numbers that the VOFR equipment disposition is whole, this has increased the configuration of VOFR network, safeguard, management costs, in order to reduce configuration, safeguard, management costs, the applicant has proposed the frame-relay network networking plan of GATE SWITCH (gateway is mutual), the core of this scheme is as gateway interaction center node with one or several VOFR equipment, and other equipment are as fringe node, the all-calls of fringe node is all exhaled earlier on the gateway interaction center node, by the Dial-Peer of gateway interaction center node, select your destination and breathe out again according to configuration.The Dial-Peer that so only need preserve the whole network telephone number on gateway interaction center node gets final product, and other fringe nodes all no longer need the phone number dial peer-to-peer of the whole network.This has reduced configuration, maintenance, management costs widely.

Summary of the invention

The objective of the invention is frame-relay network networking plan for realizing that above-mentioned gateway is mutual, solution exists the jack per line correspondence on gateway interaction center node when plural Dial-Peer, gateway interaction center node is called out the selection problem, call routing method in a kind of voice over frame relay network is proposed, can improve percept of call completed effectively, can also flexible configuration black phone voice (POTS, Plain Old Telephone Service), Internet Protocol telephone voice (VOIP, Voice Over IP) or voice over frame relay (VOFR).The call priority rank of three kinds of route-types is accomplished backuping each other of three.

Call routing method in a kind of voice over frame relay network that the present invention proposes is characterized in that, comprising:

To determining of each Dial-Peer routing priority level: after respectively parameters such as the mode of user configured call priority rank, number, length being multiply by different coefficients respectively, summation obtains the match reference value of Dial-Peer, the match reference value is big more, and then this Dial-Peer routing priority level is high more;

Routing again when routing and call failure: the routing priority according to Dial-Peer is called out selection, and what priority level was high then preferentially selects; When calling out when the high Dial-Peer of priority level is breathed out failure, calling will be breathed out from the Dial-Peer of inferior preferential rank, up to breathing out successfully or having selected all Dial-Peers successively.

Said Dial-Peer can comprise called number, the pairing route-type of this called number; This route-type can comprise black phone voice (POTS), Internet Protocol telephone voice (VOIP) or voice over frame relay (VOFR).

The computing formula of said match reference value can be: M=A * K1+B * K2+E * K3;

In the formula; M is the match reference value; A disposes the call priority rank of Dial-Peer for the user; B be in the Dial-Peer in the called number numeral number; E is the number of called number mid point in the Dial-Peer; K1, K2, K3 are coefficient, and, K1＞K2＞K3.

The present invention can dispose a kind of of said Internet Protocol telephone (IP) voice (VOIP), voice over frame relay (VOFR) or three kinds of route-types of black phone voice (POTS) respectively to said Dial-Peer, and every type is provided with different call priority ranks, and the three backups each other.

Routing again behind said routing and the call failure may further comprise the steps:

1, gateway interaction center node is received a call request, searches corresponding Dial-Peer according to called number;

2, judge whether to find Dial-Peer, if search less than, terminated call then corresponding to this called number;

3,, breathe out from the Dial-Peer that the routing priority level is the highest if found a plurality of Dial-Peers;

If 4 breathe out successfully, then finish;

5 otherwise, search corresponding Dial-Peer once more;

5 otherwise, search corresponding Dial-Peer once more;

6, judge whether to find the record of time one-level priority level, if search less than, terminated call then; If found, breathe out from the Dial-Peer of inferior one-level priority level again, if access success then finishes, otherwise, change the circulation of the 5th step;

7, when having searched all Dial-Peers, it is successful also not breathe out, then terminated call.

The sign of said access success can be called subscriber's phone ring.

Characteristics of the present invention and effect:

Method of the present invention is to select suitable destination to breathe out intelligently according to user configured Dial-Peer, adopt method of the present invention, when having the Dial-Peer that arrives same telephone number more than two on the gateway interaction center node, gateway interaction center node will select the highest Dial-Peer of priority level to breathe out, when breathing out failure, can determine whether will breathe out, can improve percept of call completed effectively intelligently from the Dial-Peer of inferior preferential rank.

Method of the present invention can also flexible configuration POTS, VOIP, the call priority rank of three kinds of route-types of VOFR, accomplishes backuping each other of three.

Description of drawings

Fig. 1 is the call routing method embodiment flow chart in the voice over frame relay network of the present invention.

Embodiment

Calling intelligent route selecting method in the voice over frame relay network that the present invention proposes reaches accompanying drawing in conjunction with the embodiments and is described in detail as follows:

Call routing method embodiment in the voice over frame relay network of the present invention comprises: two parts of routing again when the determining of the routing priority level of Dial-Peer, routing and call failure are illustrated respectively below:

One, definite method of Dial-Peer routing priority level, the user can be the different Dial-Peer of duplicate numbers configuration according to actual conditions, and gives the different different call priority rank parameters of Dial-Peer configuration.The user can check numbers, and configuration is digital, numeral is added some points, point, numeral add T entirely, point adds several mode parameters such as T, full T; Wherein, the real number of numeral, the some expression can be Any Digit, and T represents to have a plurality of Any Digit arbitrarily.As for same number 1234567, following several expression mode can be arranged then:

1234567

123....

1T

1....T

T

Number to these several different modes also disposes different priority levels.

Present embodiment carries out the definite concrete grammar of routing priority level to the Dial-Peer with above-mentioned each parametric representation:

For each Dial-Peer is provided with a match reference value, this match reference value can wait in the compound mode of the numeral of the call priority rank of gateway interaction center node place configuration, configuration, point, T and number (length) according to the user to be had other calculation of parameter of different priorities and goes out, and this value is finally to determine the routing priority level foundation just of Dial-Peer.Concrete computational methods are all to determine a coefficient for every kind of parameter, and the parameter coefficient that priority level is high is big more; And then summation.

The computing formula of the match reference value (M) of present embodiment is as follows:

M＝A×K1+B×K2+E×K3；

In the formula; A disposes the call priority rank of Dial-Peer for the user; B be in the Dial-Peer in the called number numeral number; E is the number of called number mid point in the Dial-Peer; K1, K2, K3 are coefficient, wherein, and K1＞K2＞K3.

For example:

Match reference value=(user disposes the call priority rank of Dial-Peer) * 100000

+

(in the Dial-Peer in the called number numeral number) * 1000

+

(number of called number mid point in the Dial-Peer) * 10 (5 or 0)

In the following formula, first: call priority is a principal element, so give the coefficient 100000 of a maximum;

Second: under the identical situation of Dial-Peer call priority rank, the priority level that the numeral coupling is many more is high more;

The 3rd: in the numbers match principle, some matching ratio T coupling is preferential, if the T coupling is arranged then subtract 5, otherwise does not subtract, and expression T coupling priority level is minimum.

Present embodiment also disposes a kind of in VOIP, VOFR or three kinds of route-types of POTS respectively to each Dial-Peer, and every type is provided with different call priority ranks, the three backups each other, promptly when a certain telephone number (as 1234567) can't be connected owing to the fault of a certain section network, call out by another mode automatically.For example: under the normal condition, the user calls out (can guarantee voice quality) with VOFR, if but frame relay fault or bandwidth are not enough, and then use VOIP to call out (can save long-distance cost), if but VOIP then is directly switch to POTS (use intercity line) when also breaking down.

The specific implementation of above-mentioned this situation is: corresponding to a plurality of Dial-Peers of same number (as 1234567), dispose three kinds of route-types of VOFR, VOIP or POTS respectively; And the call priority rank that VOFR is set is; A=3; The call priority rank of VOIP is: A=2; The call priority rank of POTS is: A=1; The call priority rank that is VOFR is greater than VOIP, and the call priority rank of VOIP is greater than POTS.Be exactly the backup of VOIP like this, and POTS become the backup of VOIP as VOFR.

Certainly, the priority level of these three kinds of route-types also can be carried out other flexible configuration as the case may be, backups each other.

After the user has disposed Dial-Peer, the match reference value of each Dial-Peer has just been calculated, and as the part of Dial-Peer, each like this Dial-Peer of searching, as long as according to the size of its match reference value, just can determine the height of its routing priority level.

Two, the embodiment of routing implementation method again behind routing and the call failure may further comprise the steps as shown in Figure 1:

1) gateway interaction center node is received a call request, searches corresponding Dial-Peer according to called number;

Judge whether to find Dial-Peer, if search less than, terminated call then corresponding to this called number;

3), breathe out from the Dial-Peer that the routing priority level is the highest if found a plurality of Dial-Peers;

4), then finish if breathe out successfully;

5) otherwise, search corresponding Dial-Peer once more;

6) judge whether to find the record of time one-level priority level, if search less than, terminated call then; If found, breathe out from the Dial-Peer of inferior one-level priority level again, if access success then finishes, otherwise, change the circulation of the 5th step;

7) when having searched all Dial-Peers, it is successful also not breathe out, then terminated call.

Above-mentioned access success be masked as the ring of called subscriber's phone.

Claims (7)

1, the call routing method in a kind of voice over frame relay network is characterized in that, comprising:

1) determining each Dial-Peer routing priority level: after respectively parameters such as the mode of user configured call priority rank, number, length being multiply by different coefficients respectively, summation obtains the match reference value of Dial-Peer, the match reference value is big more, and then this Dial-Peer routing priority level is high more;

2) routing again when routing and call failure: the routing priority according to Dial-Peer is called out selection, and what priority level was high then preferentially selects; When calling out when the high Dial-Peer of priority level is breathed out failure, calling will be breathed out from the Dial-Peer of inferior preferential rank, up to breathing out successfully or having selected all Dial-Peers successively.

2, the call routing method in the voice over frame relay network as claimed in claim 1 is characterized in that, said Dial-Peer comprises called number, the pairing route-type of this called number.

3, the call routing method in the voice over frame relay network as claimed in claim 1 is characterized in that said route-type comprises public switched telephone network voice, Internet Protocol telephone voice or voice over frame relay.

4, the call routing method in the voice over frame relay network as claimed in claim 2 is characterized in that the computing formula of said match reference value is: M=A * K1+B * K2+E * K3;

In the formula: M is the match reference value; A disposes the call priority rank of Dial-Peer for the user; B be in the Dial-Peer in the called number numeral number; E is the number of called number mid point in the Dial-Peer; K1, K2, K3 are coefficient, and, K1＞K2＞K3.

5, the call routing method in the voice over frame relay network as claimed in claim 3, it is characterized in that, to said Dial-Peer dispose respectively said black phone voice, Internet Protocol telephone voice or three kinds of route-types of voice over frame relay any, and every type is provided with different call priority ranks, and the three backups each other.

6, the call routing method in the voice over frame relay network stated of claim 1 is characterized in that the routing again behind said routing and the call failure may further comprise the steps:

1) gateway interaction center node is received a call request, searches corresponding Dial-Peer according to called number;

2) judge whether to find Dial-Peer, if search less than, terminated call then corresponding to this called number;

3), breathe out from the Dial-Peer that the routing priority level is the highest if found a plurality of Dial-Peers;

4), then finish if breathe out successfully;

5) otherwise, search corresponding Dial-Peer once more;

6) judge whether to find the record of time one-level priority level, if search less than, terminated call then; If found, breathe out from the Dial-Peer of inferior one-level priority level again, if access success then finishes, otherwise, change the circulation of the 5th step;

7) when having searched all Dial-Peers, it is successful also not breathe out, then terminated call.

7, the call routing method in the voice over frame relay network stated of claim 6 is characterized in that the phone that is masked as the called subscriber ring of said access success.