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Modem Issues

How do I know that my V.90 update worked correctly?

Lucent-based modems

Send an ATI3 in a terminal program, or check the ATI3 response in the Windows 95 Modem control panel.

If the ATI3 response shows firmware version 5 or higher, the modem supports V.90.

Conexant/Rockwell-based modems

Issue this command in a terminal program: AT+MS=?

A K56flex-only Rockwell-based modem will respond:

(0,1,2,3,9,10,11,56,64,69)

A K56flex Rockwell-based modem that has been upgraded to V.90 will respond:

(0,1,2,3,9,10,11,12,64,69)

Note that there is now a 12 instead of a 56. The 12 represents support for V.90. The 56 represented the K56flex support. 

3com/USR X2-based modems

Most X2 modems will allow you to connect to X2 and V.90 hosts after upgrading to V.90.    The only exception is the ActionTec IS560SKV / DT56000 x2 .   It loses X2 capability.

In a terminal program, send the ATI7 command. V.90 should be listed along with the other protocols.