Before switching to 56K modem ...
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If we buy now the vendor should offer upgrade to eventual standard.
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And of course the full K56bps is available for download only. Upload of data is available at standard rates (max 33.6 Kbps).
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There are also other issues which should be taken into account (vendor, technology, type, upgradability to new standard, remote configuration and management)
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PC must be fast enough to keep up with the modem : it is important when data are compressed more than 2:1. The serial interface in PC (which usually is 115.2 Kbps can be too slow and must be accelerated.)
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