We have an office network and hundreds of calls are being made daily on land lines and mobiles with different cellular networks.
My idea is that we have a system that will check intelligently that on which cellular network we are going to call. The advantage of identifying the network is that, (assuming every type of cellular network SIM is installed in our system) system will call that number from the same network on which we are calling.
By doing this we can decrease the charges, as call on the same network has less fares then calling on another network.
So I want to ask, is there a way through which we can identify the network of called number?
Using Telephony API you can get the network information of incoming call, but for outgoing call you can no do same.