Vodafone is best in network, but you talking about voice call only. No speed and 3G/4G network in village area and some small cities. If you are in city area where 4G network is there then you will get maximum speed ( upto 15Mbps) . The best thing about vodafone is comstomer support system. Costomer care facility is best among all operator. Your complaint will be resolve quickly, this the only reason I still stick up with vodafone and using as a primary sim card.