Toshiba Satellite 2430 User Manual page 195

Satellite 2430 Series
V.90
The Toshiba internal modem uses V.90 technology. The modem is
capable of downstream speeds of 56Kbps (kilobits per second) when
connected to an Internet service provider that supports V.90. As with any
modem, the actual throughput (speed of data transfer) depends on
analogue telephone line conditions, which can vary considerably.
Therefore, many users will experience throughput in the range of 32-
44Kbps under normal telephone line conditions. Upstream data flows at
the V.34 rate.
V.90 rates can be achieved only when one V.90 capable modem is
connected to another. The Toshiba Internal modem will select
automatically V.34 if the remote modem lacks V.90 capability or if a
combination of network and/or phone line conditions prevent V.90
connection.
V.90 mode
Function
Data V.90
User's Manual
Satellite 2430 Series
Appendix J
Transmission speed
From 56K (maximum) to 28Kbps (minimum)
Reception only
V.90
J-1
J-1