How would I add this toll-free check into a Voxalot dialplan? I've got a provider setup to take all US 10 and 11 digit calls, but they charge for 800 calls.
I was hoping to set up something that would catch the 4 toll-free area codes, but I can't think of a way of doing it in one check, only 4 different checks. The closest I got was:
_18[0678][0678]X.
But that hits non toll free area codes too (e.g. 1806...).
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