Are you looking for a feature rich multi tenant IP PBX solution?
Do you want to use it to run a business?
ASTPP offers multi tenant IP PBX Solution with advanced billing. ASTPP enterprise version offers a wide range of VoIP solutions. Multi tenant IP PBX system and billing software are one of the offered solutions. To know more about ASTPP 4 and its multi tenant IP PBX solution, visit http://www.astppbilling.org »