SAILOR TT-3084A Fleet 77 SAILOR TT-3086A Fleet 55 - Polaris-as.dk

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Chapter 3: Getting started
MPDS connection 3.5
Introduction 3.5.1
Note The MPDS service is only available on Fleet55 systems when the
vessel is positioned inside an area with Spot Beam coverage. On
Fleet77 systems the service is also available in global beam.
Mobile Packet Data Service (MPDS) is a service that allows the mobile user to
remain “always connected” to the Internet with billing based on the amount of
data transferred rather than the time spent online. This makes the service an
ideal and cost effective solution for applications like Web browsing, e-mail
services, IP/LAN connectivity and small to medium size file transfer. The MPDS
service provides a 64 kbit/s shared channel.
While in MPDS mode the TT-3084A is flagged busy in the Inmarsat network.
This means that the Fleet system is not able to receive any incoming calls until
it returns to normal idle mode. However, the user can enable the Call Waiting
Notification feature. This allows the system to receive voice calls during an
ongoing MPDS call. For further information about this feature, see Call waiting
on page 45.
The sections Setting up MPDS over RS-232 on page 105 and Setup using
Ethernet/PPPoE on page 129 contain descriptions of how to setup an MPDS
connection using your PC.
Call waiting 3.5.2
As indicated in the previous section the user can enable the Call Waiting
Notification in order to receive incoming voice calls during an MPDS session.
The enabling can optionally be restricted to specific phone numbers.
The 4-wire and 2-wire interfaces can be configured for usage for the Call
Waiting Notification. When the notification arrives, the user is notified by a
special ringing tone and a message is shown in the display if the 4-wire
handset is selected for the service.
In case of an incoming call during an MPDS session with the Call Waiting
Notification enabled, the user has three options:
MPDS connection 45
Getting started