| 主权项 |
1. A method of providing services in a communication system, the method comprising:
establishing, using a caller terminal, a call instance from the caller terminal to a service provider terminal in the communication system; receiving, at the caller terminal and from the service provider terminal, a service proposal in the form of an electronic document via the established call instance; selectively accepting or rejecting, at the caller terminal, the service proposal; responsive to acceptance of the service proposal, transmitting, from the caller terminal, a request for money to a backend server in the communication system; receiving, at the caller terminal, electronic cash tokens from the backend server in response to the request for money, the electronic cash tokens comprising: an indication that a caller account has been debited for services identified in the service proposal; a caller identifier; a service provider identifier; and a monetary value; and forwarding the electronic cash tokens, from the caller terminal, to the service provider using the service provider identifier, terminal effective to enable the service provider to provide services in accordance with the service proposal. |
