AB&T Telecom offers Voice T1's and PRI from numerous carriers across the US.  Local voice access is geographically dependent and the tariffs differ by state so it's important to provide AB&T with the address, area code and prefix (NPA/NXX) to qualify service(s) for a specific location(s) that you need to provide service for.  It is always helpful to indicate whether or not there is Long Distance usage needed for the customer also.  Between the major Bell Companies (or ILEC) and numerous facilities based and switchless CLEC's, AB&T Telecom provides local voice access for effectively 100% of the country.  You may also call your AB&T Channel manager for a quick review of what carrier is most likely to cover a particular city or state for the service needed.