Quadro Quadro16xi Installation Guide download pdf (Page 106)

Quadro Manual II: Administrator's Guide Administrator’s Menus

Quadro2x, 2xi, Quadro4x, 4xi, Quadro16x, 16xi; (SW Version 5.2.x) 105

Best Matching Algorithm

All calls through and within a Quadro are made according to call routing patterns that specify a destination based on a dialed number. When a user

sive patterns will be used only if the destination specified by a higher priority

pattern is unreachable.

To prioritiz ng patt lied to matching patterns. The criteria are ordered by their priorities:

Each consecutive criterion is c e value for the preceding criteria: that is Criterion 3 is calculated only

for patterns that take the same

dials a number to make a call, the Quadro matches the dialed number against the existing patterns that are specified in the Call Routing table. If the

dialed number matches only to a single pattern, this pattern will be used to set up a call. If several patterns have been found to match the number,

the Quadro uses the Best Matching Algorithm to prioritize the matching patterns. Once the patterns are prioritized, the pattern with the highest

priority will be used as a preferred route for call setup. The succes

e the matchi erns, the following criteria are sequentially app

alculated only for the patterns that take the sam

value for Criterion 1 and Criterion 2.

Criterion 1

The presence of asterisks (“*”) in a pattern

The patterns without “*” have a higher priority.

Criterion 2

The total number of matching digits/symbols inside and outside the braces/brackets

The more matching digits a pattern contains, the higher its priority.

Criterion 3

The number of matching digits/symbols outside the braces/brackets

rity.

qual but non-zero value for Criterion

The more matching digits outside braces/brackets a pattern contains, the higher its prio

Please Note: This criterion is used only if several patterns take an e

Criterion 4

The total number of question marks (‘?’) inside and outside the braces/brackets

The more question marks a pattern contains, the higher its priority.

Criterion 5

The number of question marks (“?”) outside braces/brackets

brackets a pattern contains, the higher its priority.

e an equal but non-zero value for Criterion

The more question marks outside braces/

Please Note: This criterion is used only if several patterns tak

Criterion 6

ains, the higher its priority.

The number of square brackets (“[]”)

The more brackets a pattern cont

Criterion 7

contains, the higher its priority.

The number of braces (“{}”)

The more braces a pattern

Criterion 8

s, the higher its priority.

The number of asterisks (“*”)

The fewer asterisks a pattern contain

Criterion 9

The lower the metric of a pattern is, the higher its priority.

The value of the metric

Criterion 10

The higher the position of a patt is, the higher its priority.

The position in the routing table

ern in the routing table

Example: The user has dialed 1231 and the following matching patterns have been found.

The lis tterns t of pa

*1*

123*

{11-15}3*

?2?1

123?

[1-3]*

[1-3]???

{100-150, asd, \*\?}1

12*31

1231

*2*1

1[1-3]3[0-8]

Step 1: The list is split into two groups separating the patterns with “*” from those without (Criterion 1). The patterns with “*” form a group with a

lower priority and are pushed back to the end of the list.

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Quadro Quadro16xi Installation Guide Page 106

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