\+the literal + (4310 / 538 / 2B16)
\d{1,3}a digit, repeated between 1 and 3 times
?repeats the group contents below at most once:
-the literal - (4510 / 558 / 2D16)
the literal (3210 / 408 / 2016)
\(?optionally matches the literal ( (4010 / 508 / 2816)
\da digit
\)?optionally matches the literal ) (4110 / 518 / 2916)
?repeats the group contents below at most once:
-the literal - (4510 / 558 / 2D16)
the literal (3210 / 408 / 2016)
\d{1,5}a digit, repeated between 1 and 5 times