Automated wireless-call completion using a paging network

Details Automated wireless-call completion using a paging network Automated wireless-call completion using a paging network

H - Electricity

04

Q

H04Q 7/00 (2006.01) H04Q 7/14 (2006.01) H04Q 7/32 (2006.01) H04Q 7/38 (2006.01)

Patent

CA 2192513

In a cellular telephone system (FIG. 1), a pager (122) is associated with a cellular phone (121) that is normally kept turned off and thus not drawing power from its battery (513). When an incoming call for the cellular phone arrives at a cellular exchange (103) and the exchange determines that the cellular phone is not registered with a base station (107-109), a paging system (105) is caused to transmit an incoming-call-indicative paging signal to the pager. Receipt of this paging signal at the pager either causes the user of the pager and the cellular phone to turn on the cellular phone, or causes the pager to turn on the cellular phone automatically via associated circuitry (502, 515). Activation causes the cellular phone to register with a base station, whereupon the cellular exchange extends the incoming call to thecellular phone through that base station. If the incoming call is not answered, or when the incoming call is completed, the paging system is caused to transmit a second paging signal to the pager. Receipt of the second paging signal at the pager leads to the cellular phone being turned off again. The cellular phone can therefore normally be turned off without fear of missing incoming calls. Battery power of the cellular phone is thus conserved.

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