3Com 56K manual Percent % Command Set

Percent (%) Command Set B-11

Command	Function
	&Y0	Destructive, don't send break.
	&Y1	Destructive, expedited.
	&Y2	Nondestructive, expedited.
	&Y3	Nondestructive, unexpedited; the modem sends a
		break-in-sequence with data received from your
		computer or terminal.

If the call is under MNP5 data compression, destructive breaks cause both modems to reset their data compression tables. When transmission resumes, the modems build new tables, and the result is lower-than- normal throughput.

Command	Function
&Zn=s	Store up to 10 numbers in NVRAM, where n is the position 0-9 in
	NVRAM, and s is the phone number string. The number string may
	be up to 36 characters long, including any Dial command options.
	Example: AT&Z2=555-6789
	In the following example, &M0 (no error control) is inserted before
	the Dial command: AT&M0 DS2

This command functions differently when Dial Security is enabled.

Also, 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.

&Zn=L	Stores the last-dialed number in position n.
&Zn?	Display the phone number stored in NVRAM at position n (where n
	= 0-9).
&ZC=s	Store command string s in NVRAM. The command string can be up
	to 30 characters long; spaced do not count. This command is used
	so you can call another modem without loading your
	communications software.
&ZC?	Display the stored command string.

Percent (%)

Command Set

Command Function

%$ Display the help panels for the percent (%) command set.