> I'm not very familiar with that style of configuration.
> My supposition is that you miss the
> identification/authentification step.

 No, Read the original mail and seek for "PAP/CHAP". His connection
does work, but his local network setup somehow is wrong.

>       OK ATX3
>       OK ATDT71586543
>       username>--username> MyUserName
>       password> MyPassword

 This is a "bad idea". Read about "PAP" or "CHAP" secrets in "man pppd".
Of course only when you are using a true PPP-dial-in server.

-- 
Markus Illenseer
NetBSD 1.3.2 CD-ROM "Gateway! Vol. 3" now shipping!  See:  http://core.de/