Abstract: A method of implementing a call-back service by a calling party subscriber attempting to call a telecommunications device operated by a called party, comprising the steps of paging to the telecommunications device, determining that the device is not available, and noting in a calling party subscriber record that a subsequent call is to be placed to the device upon its subsequent registration. The method may include the steps of receiving an indication that the device is available and placing the subsequent call to the device. The method may also includes the steps of notifying the subscriber that the device is available and querying the subscriber as to whether the subsequent call should be placed to the device.

Abstract: A prepaid communications account is shared by at least a first subscriber and a second subscriber whereby access to the prepaid account is locked in response to a first prepaid call originating from the first subscriber. A first portion of the total prepaid talk time in the account is allocated to the first prepaid call. The total prepaid talk time is updated as a first updated prepaid talk time by subtracting the first portion from the total prepaid talk time; unlocking access to the prepaid account; and, while the first prepaid call is ongoing, locking access to the prepaid account in response to a second prepaid call originating from the second subscriber. A second portion of the first updated prepaid talk time is allocated to the second prepaid call. The first updated prepaid talk time is updated to provide a second updated prepaid talk time by subtracting the second portion from the first updated prepaid talk time; and access to the prepaid account is unlocked.