Re: [asterisk-users] How strip +1 from caller id on inbound call

voiplist wrote:
> From some of our telecom providers we get the caller-id as:
> NXXNXXXXXX
>
> From others we get:
> +1NXXNXXXXXX
>
> We are trying to standardize the way our caller-id comes in so we
> would like to strip off the +1 from the inbound caller id.
>
> Can anyone offer any suggestions?
>
This is untested, but I think something like this ought to do it-

exten => s,n,ExecIf($["${CALLERID(num):0:1}" = "1"], Set,
CALLERID(num)=${CALLERID(num):1})

Trevor

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