Regular ExpressionsΒΆ

  • ^ 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

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})$
  • 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})$