Intelligent Call Mapping and Routing for Low Cost Global Calling on Mobile Devices Including SmartPhones

摘要

A method for providing international telephone call service to a calling party using a PSTN enabled communication device includes dialing the destination telephone number and establishing a connection between a software application installed on the communication device and an application server, authenticating the calling party using the user ID and the caller ID. When the calling party is authenticated, the method includes assigning a local DID number having the same or a nearby area code as the caller ID, notifying the communication device of the assigned local DID number, storing the destination telephone number and the assigned local DID number in a database, initiating a telephone connection over the PSTN to control signaling servers by dialing the assigned local DID number, retrieving the destination telephone number associated with the local DID number from the database, and establishing a voice-based connection between the caller and the callee.