INVESTIGATION
VOIP CARRIER SIEVE
Checks a phone number's line type and routing to flag non-fixed VoIP or virtual numbers. A phone number's line type is a fact about the number itself, unaffected by whatever explanation accompanies it.
Checks a phone number's line type and routing to flag non-fixed VoIP or virtual numbers. A phone number's line type is a fact about the number itself, unaffected by whatever explanation accompanies it.