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