LAHORE – ZONG has yet again broken new ground by launching the most economical and attractive offer in the entire industry which allows unlimited free ZONG to ZONG calls for 12 hours (between 6AM to 6PM) at a nominal daily subscription of Rs 6 plus tax, says a press release. The company has come up with a very lucrative offer for its subscribers with absolutely free calls from ZONG to any number of ZONG numbers with no cap on minutes consumed during the promo duration.