Routing Table Expressions; Pattern Matching Expressions - Dialogic Vision CX Video Administration Manual

Creating routes

Routing table expressions

This topic describes the routing table expressions you can use in the gateway routing
table.

Pattern matching expressions

The following table provides a description of the regular expressions used for pattern
matching in the To incoming and From incoming fields of the gateway routing table.
Pattern Usage
tel: Must prefix the regular expression. Indicates that the regular expression applies to
inbound PSTN calls.
sip: Must prefix the regular expression. Indicates that the regular expression applies to
inbound SIP calls.
. (period) Must prefix the expression. Indicates that the call will be routed to the PSTN.
\d Matches any single digit, 0 through 9.
{n} Matches the preceding character exactly n times.
For example, the pattern \d{7} matches the seven-digit telephone number in
1234567@gateway.dialogic.com and the first seven-digits in the called number
0123456789. It does not match anything in 123456@gateway.dialogic.com.
* (asterisk) Matches the preceding character zero or more times.
For example, the pattern \d* matches all of the digits in
5082711847@gateway.dialogic.com and also matches user@gateway.dialogic.com,
although the matching substring in this case is empty.
+ (plus) Matches the preceding character one or more times.
For example, the pattern \d+ matches all of the digits in
5082711847@gateway.dialogic.com but does not match
user@gateway.dialogic.com.
? Matches the preceding character 0 or 1 times.
For example, the pattern 1?\d+ matches tel:5082711847 and tel:15082711847.
^ (carat) Causes the pattern that follows the ^ (carat) sign to match only if the match occurs
at the beginning of the string.
For example, the pattern ^847 matches the beginning of number 8479258900 but
does not match the beginning of number 5082711847.
$ (dollar) Causes the pattern preceding the $ (dollar) sign to match only if the match occurs
at the end of the string.
For example, the pattern 847$ matches the end of number 5082711847 but does
not match the end of number 8479258900.
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Dialogic® Vision™ CX Video Gateway Administration Manual
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