User's Manual

20 AT Command Set Summaries
Command Options Function & Description
&Yn Break handling. Destructive Break clears the buffer. Expedited Break is
sent immediately to the remote system.
&Y0 Destructive, expedited.
&Y1 * Nondestructive, expedited.
&Y2 Nondestructive, unexpedited.
&Z? Display all the phone numbers stored in non-volatile RAM.
&Zn=s n=0-3 Write phone number/s to NVRAM at location n (n=0-3) use AT*Dn to set
the default dial pointer.
Extended AT* Command Set
Command Options Function & Description
*Dn n=0-3 Set default dial pointer at telephone directory location n.
*En Modem error control negotiation.
*E0 * if error control negotiation fails, keep the non-error control connection.
*E1 If error control negotiation fails, disconnect the call (hang-up).
*Qn Action taken when line quality changes.
*Q0 No action to poor signal quality.
*Q1 Retrain action taken if signal quality is poor.
*Q2 * Adaptive rate, automatic fall-back or forward.
*Q3 Disconnect if signal quality is poor.