WG3100-Series GSM VoIP Gateway User Manual
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Techroutes Network Pvt. Ltd.
63
2. Range []
One or more DTMF symbols enclosed between square brackets ("[" and "]"), but only one can be selected.
3. Range ()
One or more expressions enclosed between round brackets ("(" and ")"), but only one can be selected.
4. Separator
|: Separated expressions or DTMF symbols.
5. Subrange
-: Two digits separated by hyphen ("-") which matches any digit between and including the two. The subrange construct can
only be used inside a range construct, i.e., between "[" and "]".
6. Wildcard
x: matches any digit ("0" to "9").
7. Modifiers
.: Match 0 or more times.
8. Modifiers
+: Match 1 or more times.
9. Modifiers
?: Match 0 or 1 times.
Example:
Assume we have the following digit maps:
1. xxxxxxx | x11
and a current dial string of "41". Given the input "1" the current dial
string becomes "411". We have a partial match with "xxxxxxx", but a
complete match with "x11", and hence we send "411" to the Call Agent.
2. [2-8] xxxxxx | 13xxxxxxxxx
Means that first is "2","3","4","5","6","7" or "8", followed by 6 digits;
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