X hits on this document

659 views

0 shares

0 downloads

0 comments

116 / 174

Microsoft Windows Logo Program System and Device Requirements  —  116

B6.1.4.2.3.2 If wireless support is implemented, Mobile PC modem supports +WS46 command

Wireless modems and look-alike modems include the common types, such as North American analog cellular, cellular digital packet data (CDPD), GSM, and other digital cellular systems, as well as several other types.

B6.1.4.2.3.3 All wireless and cellular modems must use the +WS46 command, which selects the WAN.

The TIA-678 +WS46 command has codes to indicate the system in which the modem can operate. For example, the following values, quoted from Table 4 of the standard, are useful.

Value

System

1

Public telephone network (that is, a normal wireline modem)

4

CDPD

7

TIA-553 analog cellular system

10

Metricom Ricochet network

12

GSM digital cellular system

13

TIA IS-95 CDMA digital cellular

14

TIA IS-136 TDMA digital cellular (Personal Communications System)

Windows has registry keys that support analog cellular modems. Windows also supports data access in GSM and other wireless modem types.

B6.1.4.2.3.4 If digital cellular control is implemented, Mobile PC modem supports appropriate +C digital cellular standards

If digital cellular support is implemented, the following appropriate digital cellular control standards must be supported.

Standard

System and services

GSM 7.07

GSM system: data, fax, voice

GSM 7.05

GSM SMS

TIA IS-707

North American CDMA: data and fax

TIA IS-135

North American TDMA: data and fax

Digital cellular communications equipment must default to using error correction on the radio link. For example, for GSM 7.07, the modem must initialize to +CBST=,,1 (which selects a “nontransparent” air interface).

To allow data cards to use GSM/ISDN V.110 “fast access” where available in the network, +CBST=71,, ( 9600 bits per second (bps) V.110) must be a valid setting.

B6.1.4.2.3.5 If SMS support is implemented, the modem supports appropriate +C SMS control commands

To allow software applications to specify settings and manipulate short messaging services (SMS) through a GSM modem card, the card must support the following GSM 07.05 commands:

+CMGF: Message Format

+CMGL: List Messages

+CPMS: Preferred Message Storage

© 1999-2002 Microsoft Corporation. All rights reserved.

Document info
Document views659
Page views659
Page last viewedSun Jan 22 06:29:37 UTC 2017
Pages174
Paragraphs4629
Words57695

Comments