| Chapter 3 - AT Commands |
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ATS1? | Register 1 is read only, display the ring count |
ATS2 | Escape code character (S2=43, ASCII “+”) |
ATS3 | Carriage return character (S3=13, representing a carriage return) |
ATS4 | Line feed character (S4=10, representing “CTRL J” or the linefeed character) |
ATS5 | Back space character (S5=8, representing “CTRL H”) |
ATS7 | Wait for carrier after dial (S7=30 seconds default) |
ATS12 | Escape code guard time (S12=50 default ) |
ATS25 | Delay to DTR (S25=5 default ) |
ATS30 | Disconnects automatically if no data transmission in n=10 seconds (n=0 to 255; default is S50=0, so it |
| does not disconnect connection |
ATS38 | Windows size of HDLC 56K or 64K, 7 default |
ATS39 | Packet size of HDLC 56K or 64K from 1 to 2048, 2048 default |
ATS40 | Windows size of V.120, 7 default |
ATS41 | Packet size of V.120, 256 default |
ATS44 | Window size of X.75 (Transparent), 2 default |
ATS45 | Packet size of X.75 (Transparent) from |
ATS46 | Window size of X.75 T.70 NL, 2 default |
ATS47 | Packet size of X.75 T.70 NL from 1 to 2048, 130 default |
ATS50 | Window size of X.75 ISO 8208, 2 default |
ATS51 | Packet size of X.75 ISO 8208 from 128 to 2048, 1024 default |
ATS53 | Average data flow from 1000 to 7000 bytes (default is 4, which is 4000 bytes). Activates second |
| channel if average data flow is over 4000 bytes in 10 seconds. |
ATS54 | Time period from 5 to 20 minutes (default is 5). Disconnects second channel if average data flow is |
| below n bytes (set by ATS53) in 5 minutes. Only available in MLPPP BOD mode, ATB43. |
ATVn | Verbose command |
ATV0 | Return digit result code |
ATV1 | Returns word result code ( default ) |
ATXn | Enable extended result code |
ATZ | Reset |
+++Escape command
AT&Cn | Control DCD |
AT&C0 | Keep always the DCD line ON ( the same as AT&C, default ) |
AT&C1 | DCD line is active if connected |
AT&E | Select the line speed in the B channel |
AT&E0 | 64K bps (default) |
AT&E1 | 56K bps |
AT&F | Reset registers to factory setting |
AT&R | Request to send |
AT&S | Handle DSR |
AT&S0 | Keep DSR always ON ( the same as AT&S ) |
AT&ZIn*m | Filter the incoming call and accept it when called party number is the same as n and called party |
| subaddress is the same as m (option, * is the subaddress symbol) |
AT&ZOn*m | Make a call with this caller party number (n * m). “n” is the local telephone number, “*” is the sub |
| address symbol, if needed Command Description (option), and “m” is the sub address (option). |
AT#C | Caller ID setting |
AT#C? | Display the current Caller ID mode |
AT#C0 | Disable Caller ID (default) |
AT#C1 | Enable Caller ID |
MT128ISA/PCI | 26 |