Abstract: A selective call radio (100) includes a receiver section (103), an address detector (210), a power off command detector (220), and a power control section (240). The receiver section (103) is for receiving and demodulating a radio signal. The address detector (210) is for comparing an address demodulated by the receiver section (103) to at least one selective call address stored in the selective call radio (100). The address detector (210) is also for generating an address detect signal when the address matches one of the at least one selective call address within predetermined parameters. The power off command detector (220) is for generating a power off signal when the address detect signal is generated and the radio signal includes a power off command. The power control section (240) is responsive to the power off signal for changing a state of the selective call radio (100) to an off state.

Abstract: A portable paging system communicates a paging message including a first portion having at least a selective call address (406) and a first activation code (407), and a second portion having a first segment (409) of an audio portion, to a selective call receiver (300). In the portable paging system, an input device (104) prompts an originator to request an extension of the second portion of the paging message, the extension including at least a second segment (410) of the audio portion. Upon receiving an affirmative talk time extension request from the originator, and if extending the second portion of the paging message does not exceed a predetermined number of extension requests or a predetermined total broadcast time allocated for the second portion of the paging message, a paging terminal controller (210) extends the second portion of the paging message.