Overview

Checklist

The following items should be in the box when you unpack it:

•Sony Ericsson MD400 Mobile Broadband USB Modem

•USB extension cable

•Quick Start Guide (QSG)

•Lanyard and cover (if provided)

MD400/MD400g Communications Summary

Your MD400 keeps you in touch, enabling you to use the best available mobile service wherever you are. It supports tri-band Universal Mobile Telecommunications System (UMTS) and quad-band Global System for Mobile Communications (GSM):

GSM

850MHz

 

850MHz

900MHz

UMTS

1900MHz

GPRS

1800MHz

HSPA

2100MHz

EDGE

1900MHZ

 

 

 

 

 

 

 

 

 

Your MD400 supports SMS text messaging and the following communications services:

Service

Maximum Download Speed

Maximum Upload Speed

 

 

 

HSPA

7.2Mb/s

2.0Mb/s

 

 

 

UMTS

384kb/s

384kb/s

 

 

 

EDGE

247.4kb/s

123.7kb/s

 

 

 

GPRS

53.6kb/s (CS-2)

26.8kb/s (CS-2)

 

85.6kb/s (CS-4)

42.8kb/s (CS-4)

 

 

 

Where UMTS service with HSPA is available, your MD400 can connect at speeds up to 7.2Mb/s. Your MD400 provides automatic fallback to UMTS where HSPA is not available and to EDGE or GPRS service where UMTS is not available (network support required). This section describes the services that the MD400 supports:

•High Speed Packet Access (HSPA)

HSPA is an enhancement to UMTS networks. HSDPA (High Speed Downlink Packet Access) enables the downlink speed to be dramatically increased; up to 7.2Mbps using the MD400. File downloads will be faster, whilst applications such as video streaming may operate at higher quality and greater reliability. The maximum speed available depends on the configuration of the mobile network, local conditions such as distance to the base station and usage levels. HSUPA (High Speed Uplink Packet Access) enables the MD400 to upload data at speeds up to 2.0Mbps.

Overview1