# [asterisk-users] GotoIf Double Pattern Match [SEC=UNCLASSIFIED]

Sun Nov 27 17:29:16 CST 2016

```Hi guys,

Sorry if this is a really basic question, but I'm fairly new to Asterisk and am self-teaching so please go easy on me :)

Basically what I am trying to do is match 2 patterns in a conditional GotoIf.
The first condition is that the callerid(num) must end in '13'
The second condition is that the first two digits of callerid(num) must be one of 66,77,88 or 99
eg. 9913 would match, but 9013 would not. 6613 would match, but 6612 would not.

What I have written come up with is below, but I just wanted to see if I was going about this the right way, and that this expression would actually work...

exten => B,n,GotoIf(\$["\${CALLERID(num):-2}" = "13"] & \$["\${CALLERID(num):0:2}" = [5-9][5-9])?change_context)

Cheers
Calum

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