Regular Expressions

\^ Start of the string
\$ End of the string
? optional example 1? makes the 1 optional
\d{10} 10 digits
( and ) gets matching digits inside brackets sets a \$1 and second set of brackets creates \$2
\^\+?1?(\d{10})\$ 10 to 11 digits and e164 format sets \$1 to 10 digits
[0-9] Any number between 0 to 9
[2-9] Any number between 2 to 9
| The pipe works like an OR. Example \^101\$|\^102\$ matches 101 or 102
\^9(\d{10})\$ This strips off the 9 and the \$1 value is the remaining 10 digits

Dialplan Expression

Two digits: \^(\d{2})\$
Three digits: \^(\d{3})\$
Four digits: \^(\d{4})\$
FIve digits: \^(\d{5})\$
Six digits: \^(\d{6})\$
Seven digits(Local Calling): \^(\d{7})\$
Eight digits: \^(\d{8})\$
Nine digits: \^(\d{9})\$
Ten digits(Long Distance): \^(\d{10})\$
Eleven digits(Long Distance with a 1): \^\+?(\d{11})\$
North America: \^\+?1?(\d{10})\$
North America International: \^(011\d{9,17})\$
Caribbean: \^(?:+1|1)((?:684|((?:684|)264|268|242|246|441|284|345|767|809|829|849|473|876|664|670|787|939|869|758|784|721|868|649)\d{7})\$
Europe International: \^(00\d{9,17})\$
International: \^(\d{12,20})\$
311 Information: \^(311)\$
711 TTY: \^(711)\$
911 Emergency: \^(911)\$
Toll Free: \^1?(8(00|55|66|77|88)[2-9]\d{6})\$
INUM: \^0118835100\d{8}\$
Dial 9 then Two digits: \^9(\d{2})\$
Dial 9 then Three digits: \^9(\d{3})\$
Dial 9 then Four digits: \^9(\d{4})\$
Dial 9 then Five digits: \^9(\d{5})\$
Dial 9 then Six digits: \^9(\d{6})\$
Dial 9 then Seven digits: \^9(\d{7})\$
Dial 9 then Eight digits: \^9(\d{8})\$
Dial 9 then Nine digits: \^9(\d{9})\$
Dial 9 then Ten digits: \^9(\d{10})\$
Dial 9 then Eleven digits: \^9(\d{11})\$
Dial 9 then International: \^9(\d{12,20})\$

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