System and method for selecting a voice service option

• US 20010053693A1
• Filed: 08/20/2001
• Published: 12/20/2001
• Est. Priority Date: 10/22/1999
• Status: Active Grant

• Current Assignee: Baaziz Achour, Jan C. Ault, Wang Jun
• Original Assignee: Baaziz Achour, Jan C. Ault, Wang Jun
• Inventors: Wang, Jun, Achour, Baaziz, Ault, Jan C.
• Granted Patent: US 6,463,283 B2
• Time in Patent Office: Days
• US Class Current: 455/432.1
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 8/18 Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

A subscriber unit that supports more than one voice service option and selects the appropriate voice service option when originating and receiving a call. The subscriber unit includes a memory to store parameter values, including a first voice service option parameter value and a second voice service option parameter value. The subscriber unit also includes a means for determining whether the subscriber unit is within a home system or is roaming, and a selecting means for selecting from among at least a first voice service option corresponding to the first voice service option parameter value and a second voice service option corresponding to the second voice service option parameter value. The selecting means selects the first voice service option if the subscriber unit is within the home system, and selects the second voice service option if the subscriber is roaming.

Claims

1. A subscriber unit that supports more than one voice service option and selects the appropriate voice service option when originating and receiving a call, comprising:

a memory to store parameter values comprising a first voice service option parameter value and a second voice service option parameter value;

a processor for determining whether the subscriber unit is within a home system or is roaming, wherein

said processor selects a first voice service option corresponding to said first voice service option parameter value when the subscriber unit is determined to be within said home system and selects a second voice service option corresponding to said second voice service option parameter value when the subscriber unit is determined to be roaming.