Method of deterring unsolicited telephone calls

A machine readable non-transitory storage medium containing executable instructions which when executed by a data processing system cause the system to perform a method comprising:

• on receiving a call, searching and determining that an originating telephone number is in a contact list of a called party,
• checking that a calling party be charged or not if the originating telephone number is not present in the contact list;
• in response to determination that calling party can be charged, informing the calling party that a called party phone is a back charge phone, and the calling party is being charged;
• accepting by the calling party to pay charges based on an information received by the calling party about a back charge;
• connecting the call to the called party phone and providing a call information to a charge back system;
• requesting by the charge back system, a confirmation of a charge from the called party comprising whether the calling party is required to be charged, after a call is connected to the called party;
• receiving a response from the called party comprising a confirmation of charges to the calling party;
• and
• charging the calling party by the charge back system
• wherein the method further comprising:
• requesting by the charge back system for confirmation of a waiver of charge from the called party, after a call is connected to the called party;
• in response to the conversation between the called party and calling party, receiving the response from the called party regarding the confirmation of the waiver of charge to the calling party;
• waiving the charges incurred to the calling party after having the conversation on the call.