Technical information

Chapter 2: AT+i Commands Reference
May 31, 2008 AT+i Commands Reference Manual 2-129
ISP Connection Parameters
+iISPn - Set ISP Phone Number
+iATH - Set PPP Authentication Method
Syntax: AT+iISPn=dial-s
Sets the ISP's access phone numbers.
Use n=1 to set the ISP's primary access phone number.
Use n=2 to set the ISP's alternate number. The alternate number is
dialed after exhausting all redial attempts of the primary number.
Parameters: n=1..2
dial-s= Telephone number string, composed of digits, ',', '-', 'W', 'w', '*',
'#', '!' or ' '. See description of the standard ATD command.
Note: If a character that is defined as a delimiter is used within
the dial string, the string must be entered between apostrophes.
Command Options:
dial-s=' ' Empty access number.
dial-s=<number> number will be set as ISP access number.
Default: Empty. No permanent ISP access number defined.
Result Code:
I/OK If dial-s is a legal phone number string.
I/ERROR Otherwise.
AT+i IS Pn~dial-s Temporarily sets the ISP's primary/alternate access number. The
permanent value will be restored after completing the session,
whether the session was successful or not.
AT+i IS Pn? Reports the current value of the ISP's primary/alternate access
numbers. If the number does not exist, only <CRLF> is returned.
The reply is followed by I/OK.
AT+i IS Pn=? Returns the message "Phone #" followed by I/OK.
Syntax: AT+iATH=v
Sets authentication method to v.
Parameters: v=0..2
Command Options:
v=1 Use PAP authentication.
v=2 Use CHAP authentication.
Default: 1 (PAP).