Patent Number: 6,298,235

Title: Powered down selection of a preferable wireless communications service provider in a multi-service provider environment

Abstract: A powered down communication device locates a wireless service provider in a multi-service provider environment by examining frequency bands while powered down until a frequency band having an acceptable service provider is located. The frequency bands are examined in an order specified by a stored search schedule. An acceptable service provider is identified by comparing the identity of a service provider specified by an identifier received from a band being examined with a list of acceptable service providers. The communication device then registers with the acceptable service provider when powered up.

Inventors: Bamburak; Michael D. (Columbia, MD), Daly; John J. (Neshanic Station, NJ), Lawrence; Christopher Gregory (Kirkland, WA), Prise; Michael Edward (Kirkland, WA), Raffel; Michael Allen (Redmond, WA)

Assignee: AT&T Wireless Services, Inc.

International Classification: H04Q 7/38 (20060101); H04Q 7/32 (20060101); H04B 001/00 ()

Expiration Date: 10/02/2018