Abstract: The present invention provides a method and apparatus for prepayment of telecommunication connections between first and second telecommunication devices operably associable with the telecommunication lines of a telecommunication switching network. In general, the method involves storing monetary value data representative of a prepaid e.g. deposited in a centralized storage device, amount of monetary value available for payment of telecommunication connections in the telecommunication switching network. At the initiation of the first telecommunication device, a telecommunication connection is established between the first and second telecommunication devices so that a telecommunication process can be conducted therebetween. The telecommunication connection between the first and second telecommunication devices is terminated in response to termination of the telecommunication process. The time duration of the telecommunication connection is measured.