2400 BPS Internal Modem (250-3555) Commands Faxback Doc. # 4771 PARAMETER COMMAND RANGE PARAMETER DESCRIPTION ─────────────────────────────────────────────────────────────────────────── A none Answer Call Immediately ─────────────────────────────────────────────────────────────────────────── A/ none Repeat Last Command Line Does not require AT preceding or carriage return ─────────────────────────────────────────────────────────────────────────── B 0-1 Set Bell CCITT Protocol Compatibility 0 = CCITT v.22 at 1200 bps 1 = Bell 212A at 1200 bps ─────────────────────────────────────────────────────────────────────────── &C 0-1 Set Carrier Detect Options 0 = Carrier detect forced 1 = Carrier detected from remote equipment ─────────────────────────────────────────────────────────────────────────── D none Set Dialing Command Sn = Dialing subcommands Nn = Phone number . = Pause for dial tone P = Pulse (rotary) dialing T = Touch-tone dialing S = Dial stored telephone numbers ; = Return to command mode after dialing ! = Hook flash W = Wait for dial tone @ = Wait for quiet answer ─────────────────────────────────────────────────────────────────────────── &D 0-3 Set Data Terminal Ready 0 = DTR is forced 1 = modem assumes asynchronous command state if DTR is toggled. 2 = Modem goes on hook and disables auto answer 3 = Assumes initialization state if DTR is toggled ─────────────────────────────────────────────────────────────────────────── E 0-1 Set Echo Back Control 0 = Do not echo in command mode 1 = Echo in command mode (default) ─────────────────────────────────────────────────────────────────────────── &F none Fetch Factory Configuration Profile ─────────────────────────────────────────────────────────────────────────── &G 0-2 Set Guard Tone 0 = No guard tone 1 = 550 Hz guard tone 2 = 1800 Hz guard tone ─────────────────────────────────────────────────────────────────────────── H 0-1 Set Hook Control 0 = On hook (hang up) 1 = Off hook ─────────────────────────────────────────────────────────────────────────── I 0-3 Set Request ID Code 0 = Request product code 1 = Request checksum 2 = Request checksum check 3 = Request version number ─────────────────────────────────────────────────────────────────────────── M 0-3 Set Monitor Speaker Control 0 = Speaker always off 1 = Speaker on until carrier detected (default) 2 = Speaker always on 3 = Speaker disabled during data transfer and dialing ─────────────────────────────────────────────────────────────────────────── O none Return to On-Line State 0 = Return to on-line state ─────────────────────────────────────────────────────────────────────────── P none Select Pulse (rotary) or Dial ─────────────────────────────────────────────────────────────────────────── &P 0-1 Make/Break Dial Pulse Ration Selection 0 = 39% or 61% (United States) 1 = 33% or 67% (United Kingdom/Hong Kong) ─────────────────────────────────────────────────────────────────────────── Q 0-1 Select Quiet Mode Control 0 = Result codes sent 1 = Result codes not sent ─────────────────────────────────────────────────────────────────────────── Sr? 0-27 Determine Status of a Register r refers to one of the modem's registers. Displays contents of specified register. ─────────────────────────────────────────────────────────────────────────── Sr = n Change Register Value 0-27 (r) r = register number n = value in register; r equal to n ─────────────────────────────────────────────────────────────────────────── T none Set Touch-Tone Dialing ─────────────────────────────────────────────────────────────────────────── &T 0-8 Enter Terminate Test Mode 0 = Terminate any test in progress 1 = Local ALB 3 = Local DLB 4 = Enable response to RDL 5 = Disable response to RDL 6 = Initiate RDL 7 = Initiate RDL with self test 8 = Initiate ALB with self test ─────────────────────────────────────────────────────────────────────────── V 0-1 Select Result Code Control 0 = Result numbers displayed 1 = Result words displayed ─────────────────────────────────────────────────────────────────────────── &V none Display Active and Stored Profiles ─────────────────────────────────────────────────────────────────────────── W none Wait for Dial Tone ─────────────────────────────────────────────────────────────────────────── &W 0-1 Write to Memory 0 = Store active profile in location 0 1 = Store active profile in location 1 ─────────────────────────────────────────────────────────────────────────── X 0-4 Select Extended Result Code Set 0 = Basic result code set (0-4) 1 = Codes 0-4, 5, 10 enabled 2 = Codes 0-4, 5, 6, 10 enabled 3 = Codes 0-4, 5, 7, 10 enabled 4 = Codes 0-4, 5, 6, 7, 10 enabled ─────────────────────────────────────────────────────────────────────────── Y 0-1 Set Long Space Disconnect 0 = Disable long space disconnect 1 = Enable long space disconnect ─────────────────────────────────────────────────────────────────────────── &Y 0-1 Select Stored Profile on Power-Up 0 = Select stored profile 0 1 = Select stored profile 1 ─────────────────────────────────────────────────────────────────────────── Z 0-1 Recall Stored Profile Option 0 = Recall stored profile 0 1 = Recall stored profile 1 ─────────────────────────────────────────────────────────────────────────── &Zn = x 0-3 Store Telephone Number n = Dial digits 0-9 (tone or pulse dial) A,B,C,D,#,* (tone dial) letters and symbols T,P,W,@,!,;, and comma x = Store numbers 0-3 ─────────────────────────────────────────────────────────────────────────── (dkh-07/28/93)