https://patentbrief.org/company/bell-atlantic-network-services-inc Plain-English explanations of patents assigned to Bell Atlantic Network Services Inc, newest first. en-us Sun, 12 Jul 2026 13:23:50 GMT https://patentbrief.org/patent/us/5920821/use-of-cellular-digital-packet-data-cdpd-communications-to-convey-system-identification-list-data-to-roaming-cellular-subscriber-stations A 1995 system for helping mobile phones automatically update their preferred network lists and find the best service provider using a data-only channel. Tue, 06 Jul 1999 00:00:00 GMT https://patentbrief.org/patent/us/5920821/use-of-cellular-digital-packet-data-cdpd-communications-to-convey-system-identification-list-data-to-roaming-cellular-subscriber-stations