Thrane&Thrane Explorer 727, User Manual

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Chapter 1: Introduction
98-126882-B The Inmarsat BGAN system 9
The BGAN services
Supported services
The services currently supported by BGAN comprise:
• A Packet Switched connection to the Internet
• A Circuit Switched (Dialed) connection for voice, fax or data
• Short Messaging Service (SMS)
Packet data service
The BGAN network supports different classes of data connection to the Internet.
• Using a Standard data connection several users can share the data connection
simultaneously. This type of connection is ideal for e-mail, file transfer, and Internet and
intranet access. The user pays for the amount of data sent and received.
• Using a Streaming data connection you get an exclusive high-priority connection ensuring
seamless transfer of data. This type of connection is ideal for time critical applications like live
video over IP. The user pays for the duration of the connection (per minute charge).
Circuit switched (dialed) service
The following types of circuit switched connection are available:
• Standard Voice. A low-tariff connection for voice only. The voice signal is compressed to
4.0 kbps, which reduces the bandwidth use and consequently the tariff.
• 3.1 kHz Audio . A high quality connection which can be used for Premium Voice, G3 fax or
analog modems. The signal is uncompressed 3.1 kHz audio, which allows for optimum voice
quality.
• ISDN. A high quality connection which can be used for voice (3.1 kHz Audio), G4 fax or 64 kbps
UDI/RDI data.
SMS service
The BGAN system provides a Short Messaging Service (SMS) for sending and receiving SMS
messages.
Note
The BGAN system supports maximum 11 concurrent PS connections at a time per
EXPLORER 727 system.
Note
The BGAN system only supports one external CS call at a time per EXPLORER 727 system.