Sony Ericsson GM 28

PRODUCT FEATURES

• Dual band EGSM 900/1800 MHz serial modem
• GPRS Class B (4+1)
• Compliant with ETSI GSM Phase 2+ standards (Small MS)
• Output power
- Class 4 (2W @ 900 MHz)
- Class 1 (1W @ 1800 MHz)
• Supply voltage
- 5-32 VDC
• Standard RS232 9-way serial connection
• Overall dimensions (excluding connectors): 77 x 67 x 26mm
• Operating temperature range: -25º C to +55º C
• Storage temperature range: -40º C to +85º C
• Weight: < 130g


INTERFACES

• Data: RS232 9-way (V.28)
- Remote control by AT commands
- Serial baud rate from 1200 to 460,800 bits/s
• Power: 5-32 VDC
- RJ11 connector
• Audio: 4-wire handset interface
- RJ9 connector
• Antenna: 50.
- FME male connector
• SIM card reader: 3V/5V SIM interface with SIM detection


DATA FEATURES

• CSD up to 9.6 kbps, transparent and non transparent
• HSCSD (2+1), up to 19.2 kbps
• GPRS Class B (4+1), up to 85.6 kbps*
- P Channel support
- Coding schemes CS1-CS4
• GSM 07.10 Multiplexing Protocol


SHORT MESSAGE SERVICE(SMS) FEATURES

• Text and PDU
• Point to point (MT/MO)
• Cell Broadcast
• Concatenation – up to 6 SMS


FAX FEATURES

• Fax Group 3, Class 1 & 2


VOICE FEATURES

• Telephony
• Emergency calls
• Full Rate, Enhanced Full Rate and Half Rate
(FR/EFR/HR)
• Echo Cancellation and Noise Reduction
• Dual Tone Multi Frequency function (DTMF)


GSM SUPPLEMENTARY SERVICES

• Call forwarding
• Call hold, waiting and multiparty
• Calling/called number identification
• Advice of charge
• USSD
• Alternate line service
• Customer service profile
• Preferred networks
• Operator selection
• Network registration
• Calling cards
• Call barring
• Call transfer


OTHER FEATURES

• ME + SIM phone book management – read/write/find, call screening, groups, personal rings, settings
• SIM Application Toolkit Class 2
• Real Time Clock
• Software upgradeable
• Options for embedding customer applications
• Audio control
• Fixed dialling number
• UCS2 character set supported
• Commercially available accessories