COBHAM AVIATOR 700 - Background Information, Swiftbroadband Services

Chapter 1: Introduction
Aero services — background information 19
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Introduction
Background information, SwiftBroadband services
SwiftBroadband offers the basic services:
• Symmetric ‘always on’ data connection, packet switched (PS)
• Voice and ISDN (voice and data) service, circuit switched (CS)
• Short Messaging Service (SMS) in the AVIATOR 700 system
The following figure shows how the services are accommodated in a
SwiftBroadband channel.
With SwiftBroadband you can combine multiple packet-switched services
with one circuit-switched service active at the same time
Circuit switched (dialed) service
SwiftBroadband also provides high-quality telephone services (including
secure mode). The following types of circuit switched connection are
available:
• Standard voice. A low-cost connection for voice only. The voice signal
is compressed to 4.0 kbps, which reduces the bandwidth use and
consequently the cost. This is also called AMBE.
• 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.
Note
The SwiftBroadband system only supports one circuit-switched
call at a time per AVIATOR 700 system.
Applications supported by the SwiftBroadband service
Circuit switched service
Standard
Voice
4 kbps
Packet switched service
64 kbps
3.1 kHz
Audio
ISDN
Messaging
service
SMS
service
Standard
IP
(Internet,
e-mail,
FTP.)
Streaming IP (video, audio)
128
kbps
64
kbps
32
kbps
16
kbps
8
kbps
X-Stream
512
kbps