56K Modem

I am trying to configure my 56k modem on a Dell Inspiron 1300 but when I click on the numbered panel message I have a connection that says to "pick up the handset and reporting etc etc" as if there was any share a parameter that the modem would be unable to send tones. This modem has already been operated on using AOL. I uninstall AOL in case. If I pass by Hyper terminal and gives the command ATDT 1234567 ex I very tones. Everything seems OK except for one detail somewhere, but where and what.
Thank you in advance

The connection is perhaps the key or the?

I'm looking for the old term??

There are 2 mode of composition, and the former TouchTone dial, you
perhaps on the old?

Small question. The modem is connected to the telephone line, because if it does not detect the tone of the line it does not compose the number.

What windows are you?

I finally found the bobo. In the Network Connections control panel, under the advanced tab there was a hook: Numbering assisted by an operator.
Thank you very much.