D,* - Factory default                        
# - User programable
+ - Read only
                        
                            AT Command Summary



CMD         Function                        Parameters                  D
------------------------------------------------------------------------------
AT          Attention Code
A/          Repeat Previous command
+++         Default escape code
------------------------------------------------------------------------------
A           Enter answer mode
Bn          BELL/CCITT(1200bps)             0-CCITT answer tone              #
                                            1-BELL answer tone

Ds          Dial                            P - Pulse dial              *    #
                                            T - Tone dial                    #
                                            S - dial Stored string(&Z)       #

                                            0-9, *, #, A-D
                                            ! - Initiate hook FLASH
                                            , - Wait time (See S8)      2sec #
                                            @ - Wait for quiet answer   5sec
                                            W - Wait for dial tone      

                                            ; - Command mode after dial
                                            R - Answer mode after dial

En          ECHO to terminal                0 - No echo in CMD mode          #
                                            1 - Echo in CMD mode        *    #

Hn          Phone switch hook control       0 - ON hook (hangup)        *
                                            1 - OFF hook (on-line)

In          Identify & check sum            0 - Request modem code
                                            1 - Request check sum
                                            2 - Request check sum verify

Ln          Speaker volume                  0 - Speaker, low                 #
                                            1 - Speaker, low                 #
                                            2 - Speaker, medium         *    #
                                            3 - Speaker, high                #

Mn          Monitor Speaker Control         0 - Speaker always OFF           #
                                            1 - Speaker On till connect *    #
                                            2 - Speaker always on            #
                                            3 - Speaker on after autodial    #
                                                until connect                #

O           Return to On-Line               0 - Return to On-Line
                                            1 - Return to On-Line/Retrain

Qn          Result Codes                    0 - Result Codes sent       *    #
                                            1 - No result codes              #

Sr?         Read Register                   0 - Rings to answer         000  #
Sr=         Write Register                  1 - Rings counter           000
                                            2 - Escape Character        043
                                            3 - (CR) character          013
                                            4 - (LF) character          010
                                            5 - (BS) character          008
                                            6 - Wait for dial tone n sec  2
                                            7 - Wait for carrier n sec   30
                                            8 - Pause time (,)sec         2
                                            9 - Carrier Det resp. x.1 sec 6
                                           10 - Hang up delay x.1 sec    14
                                           11 - Not used
                                           12 - Esc code guard x.02 sec 050
                                           13 - Not used
                                           14 - Option register         170  #
                                           15 - Not used
                                           16 - Modem test options      000
                                           17 - Not used
                                           18 - Test timer n secs       000  #
                                           19 - Not used
                                           20 - Not used
                                           21 - Bit mapped options      000  #
                                           22 - Bit mapped options      118  #
                                           23 - Bit mapped options      007  #
                                           24 - Not used
                                           25 - Delay to DTR sync       005  #
                                                x.01 sec
                                           26 - RTS to CTS delay        001  #
                                                x.01 sec
                                           27 - Bit mapped options      064  #

Vn          Result Code Response            0 - Numeric Code                 #
                                            1 - English Text            *    #

Xn/         Normal/ Extended Result         0 - Basic Set/Blind Dialing      #
                                            1 - Extended/Blind Dialing       #
                                            2 - Extended/Dial Tone           #
                                            3 - Extended/Blind and Busy      #
                                            4 - Extended/Dial Tone, Busy *   #

Yn          En Long Sp Disconnect           0 - Long Sp Disconnect Disable * #
                                            1 - Long Sp Disconnect Enable    #

Z           Reset to user configure         

&Cn         DCD Options                     0 - DCD always active          * #
                                            1 - DCD active carrier detect    #

&Dn         DTR Options                     0 - DTR always ignored         * #
                                            1 - DTR causes return to CMD     #
                                            2 - DTR disconnects modem        #
                                            3 - DTR disconnect and reset     #

&F          Fetch Factory Config

&Gn         Guard Tone                      0 - Disable guard tone         * #
                                            1 - Enable 550Hz guard tone      #
                                            2 - Enable 1800Hz guard tone     #

&Ln         Leased/ Dial-up                 0 - Dial-up line               * #
                                            1 - Leased line                  #

&Pn         Pulse Make/Break Ratio          0 - USA, 39% make/61% break    * #
                                            1 - UK, 33% make/67%break        #

&Rn         RTS/CRT Handshake               0 - CTS Always active          * #
                                            1 - CTS Always active            #

&Sn         DSR Options                     0 - DSR always active          * # 
                                            1 - DSR active at connect        #

&Tn         Test Commands                   0 - Terminate test             *
                                            1 - Local analog loopback
                                            2 - Reserved
                                            3 - Local digital loopback
                                            4 - Enable Rmt digital loop    * #
                                            5 - Disable Rmt digital loop     #
                                            6 - Request Rmt digital loop
                                            7 - Request Rmt digital loop
                                                and enter self-test
                                            8 - Local analog loopback
                                                and enter self-test

&W          Write config to memory

&Zn         Store Phone Number                                              #


                AT Command Summary Result Codes

NBR     English Text        x0      x1      x2      x3      x4
---------------------------------------------------------------
0       OK                  Y       Y       Y       Y       Y
1       Connect             Y       Y       Y       Y       Y
2       Ring                Y       Y       Y       Y       Y
3       No Carrier          Y       Y       Y       Y       Y
4       Error               Y       Y       Y       Y       Y
5       Connect 1200        -       Y       Y       Y       Y
6       No Dial Tone        -       -       Y       -       Y
7       Busy                -       -       -       Y       Y
8       No Answer           -       Y       Y       Y       Y
9       Connect 600         -       Y       Y       Y       Y
10      Connect 2400        -       Y       Y       Y       Y
