Hi 060456F,
Your ISP provides you with an email account - does it not? That would be your login username and password to read email on the ISP's email server or the user email account for which someone can send you email in the format such as the following:
username@isp.net or
username@isp.com
You need to know your email address so others can email you, i.e. that is your account name - not your account number. They should also have a web page available from customer service that lists the dialup telephone numbers, so, find that web site, and then construct the wvdial.conf file in /etc so that you can dialup by just issuing the command: $ wvdial phone# where # is a digit for which phone number # you have configured in wvdial.conf - i.e. a digit from 1-n, n can take on double digit values if you have 10 or more phone1-phone11 numbers configured to call the ISP.
Look at the following
thread (my post#4) - it will show you how to configure the wvdial.conf file in /etc/. Plus, make sure that your username is a member of the dialout group, i.e. the set of users that can execute the wvdial command.
-- Tom