VOIP PI Co., Limited. is a one of the leading asterisk telephony card manufacturer in china, with passion in supplying open souce hardware.
VOIP PI Co., Limited. is a one of the leading asterisk telephony card manufacturer in china, with passion in supplying open souce hardware.
With Kaftel, you can make calls to more than 250 destinations around the world with our lowest calling rates equipped with the finest voice quality that will ever be found in the world of VOIP.
With our extremely low rates and superb voice clari