COURIER HIGH SPEED MODEMS
Store Phone Numbers
&Zn=s This command stores up to ten numbers, where n is the position 0−9 in nonvolatile memory, and s is the phone number string. The 
AT &Z2=555-6789  <Enter>
Do not include modem settings in the &Zn string. If the call requires a special setting, insert it in the command string before the DSn command. In the following example, &M0 (no error control) is inserted before the Dial command:
AT&M0 DS2 <Enter>
NOTE: The &Zn=s command functions differently when Dial Security is enabled. See Appendix D for more information.
&Zn? Display the phone number stored in NVRAM at position n (n = 0−9).
  | Redialing | 
A/  | |
  | prefix or a Carriage Return, and can be used to redial.  | 
  | A/  | 
  | Automated Redialing (>, A>)  | 
  | While > and A> can be used to continuously repeat any  | 
  | command, they are designed for automated redialing.  | 
Enter Repeat Mode
>If you know the modem you are calling is frequently busy, include the Repeat command in the Dial string, as follows:
AT > DT 1234567 <Enter> or
AT DT 1234567 > <Enter>
The modem enters Repeat mode, dials the number, waits 60 seconds for a carrier (default), and hangs up. Then after a two- second pause, it redials.
Data Mode Operations