IBM THINKPAD A20M User's Manual Supplement

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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IBM THINKPAD A20M Specifications

General

Brand	IBM
Model	THINKPAD A20M
Category	Laptop
Language	English