TAP error

[pedro1x]

Hi,
I need help using TAP.
I am trying to use TAP to send sms and my tests don't work.
I am using a modem : U.S. Robotics 56K Faxmodem USB
The modem is attached to a landline.
I am using the format : 7,e,1
Spee : 2400
Provider Dialstring : 5148300299 (the TAP number I found from Telus in Montreal)
The Provider Protocol : TAP
And I'm getting an error : 30352 : Error response from modem
Please , any ideas ?
Thank you.[/i]