[Serusers] Regular Expression Problems in this if statement?

Hello all, very glad to have been a user on this list, though I have been lurking. I've checked the documentation and have had trouble finding out information on how to translate my standard regexes (perl) into SER's routing logic I'm trying to use the following logic: if (uri =~ "^sip:1[0-9]{10}\@[0-9]{3}\.[0-9]{3}\.1\.foo\.bar\.net") { #perform actions } Now, that SHOULD match the following scenario: uri has 1 + 10 digits + @ + 3digits + . + 3digits + . + 1 + .foor.bar.net Unfortunately, it's not working.Any help translating the regex, or even just a link to the syntax allowed, maybe it's not allowing {n} to match n times? Thanks, Sherwood McGowan