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IBM THINKPAD A20M

IBM THINKPAD A20M
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Using the telephony features of the built-in modem
The built-in modem has the following telephony features:
Industry Standard modem support up to 56 Kbps:
Data protocols
Bell 103 (300 bps)
Bell 212A (1200 bps)
V.21 (300 bps)
V22bis (2400 bps)
V.34bis (33600, 31200 bps)
V.34 (28800, 26400, 24000, 21600, 19200, 16800, 14400, 12000, 9600, 7200, 4800 bps)
V.90 (downstream only)
Error correction protocols
MNP2-4 (Microcom error correction)
V.42 (error-correcting procedures for DCEs using asynchronous automatic dialing and
control)
Data compression protocols
V.42bis (DCE data compression)
MNP5 (Microcom data compression)
Miscellaneous protocols
V.8 (startup sequence)
V.90 (video phone)
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