Thrane&Thrane TT-3080A, Руководство пользователя, Страница: 16 / 124

Description of the service Description of the service Description of the service Description of the service Hardware interfaces Hardware interfaces Hardware interfaces Hardware interfaces
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between faxes and modems with an analogue 2-wire interface.
The 3.1 kHz audio service is transparent, and is suitable for all
analogue applications including secure telephones.
The MPDS service MPDS service MPDS service MPDS service is a packet data service where the tariff
depends on the amount of data transmitted. This service is a more
cost-effective solution for web browsing, and other applications
where there is no need for constant transmission of data in both
directions. It is also suitable for applications where a constant
connection is required, because the user is no longer charged the
“per minute rate”.
The mini-M voice
mini-M voice mini-M voice
mini-M voice service is only for voice transmission. The voice
transmitted over the satellite is subject to a compression process
down to 4.8 kbit/s, which reduces the bandwidth use and
subsequently the cost.
The mini-M fax mini-M fax mini-M fax mini-M fax service supports fax transmission at 2.4 kbit/s.
This can be useful and cost effective in case your fax is received
at a low speed.
The mini-M data mini-M data mini-M data mini-M data service is used to transmit data at 2.4 kbit/s. This
can be a benefit when small amounts of data are sent or received,
e.g. when a short e-mail is sent.