ROAMING CAPABLE PAGER OPERATIONAL IN NON-ROAMING AREAS
Original Publication Date: 1997-Dec-01
Included in the Prior Art Database: 2002-Jun-13
Multifrequency roaming pagers described in Motorola's FLEXTM roaming specification lock to radio frequencies to receive messages only when those frequencies carry an NID or SSID which matches one programmed in the pager. This precludes the pager from receiving messages in systems which do not carry NIDs or SSlDs (non- roaming systems). The result of this is that these roaming pagers cannot receive service in areas which have existing infrastructure that is not roaming capable as specified by FLEXTM. None of the world's existing FLEXTM infrastructure is FLEXTM multifrequency roaming capable. Therefore pagers built for the new roaming systems would not be functional in existing FLEXTM systems.