|
Register |
Default |
Function |
|
S0 |
0 |
Sets the number of rings on which to answer in Auto Answer Mode. When set to 0, Auto Answer is disabled |
|
S1 |
0 |
Counts and stores the number of rings from an incoming call. S0 must be greater than 0 |
|
S2 |
43 |
Stores the ASCII decimal code for the escape code character Default character is +
A value of 128 - 255 disables the escape code |
|
S3 |
13 |
Stores the ASCII code for the Carriage Return character
Valid range is 0 - 127 |
|
S4 |
10 |
Stores the ASCII decimal code for the Line Feed character. Valid range is 0 - 127. |
|
S5 |
8 |
Stores the ASCII decimal code for the Backspace character
A value of 128 or 255 disables the Backspace key's delete function |
|
S6 |
6 |
Sets the number of seconds the modem waits before dialing If Xn is set to X2 or X4, this is the time-out length if there is not a dial tone |
|
S7 |
60 |
Sets the number of seconds the modem waits for a carrier
May be set for much longer duration if, for example, the modem is originating an international connection |
|
S8 |
2 |
Sets the duration, in seconds, for the pause (,) option in the Dial command |
|
S9 |
6 |
Sets the required duration, in tenths of a second, of the remote modem's carrier signal before recognition by the modem |
|
S10 |
14 |
Sets the duration, in tenths of a second, that the modem waits to hang up after loss of carrier. This guard time allows the modem to distinguish between a line disturbance from a true disconnect (hang up) by the remote modem.
Note: If you set S10 = 255, the modem will not hang up when carrier is lost. Dropping DTR hangs up the modem |
|
S11 |
70 |
Sets the duration and spacing, in milliseconds, for tone dialing |
|
S12 |
50 |
Sets the duration, in fiftieths of a second, of the guard time for the escape code sequence (+++) |
|
S13 |
0 |
Bit-mapped register Select the bit(s) you want on and set S13 to the total of the values in the Value column
For example: ATS13 = 17 enables bit 0 (value is 1) and bit 4 (value is 16) |
|
Bit |
Value |
Result |
|
0 |
1 |
Reset when DTR drops |
|
1 |
2 |
Reset non-MNP transmit buffer from 1.5K to 128 bytes* |
|
2 |
4 |
Set backspace key to delete |
|
3 |
8 |
On DTR signal, auto dial the number stored in NVRAM at position 0 |
|
4 |
16 |
At power on/reset, Auto Dial the number stored in NVRAM at position 0 |
|
5 |
32 |
Reserved |
|
6 |
64 |
Disable quick retrains |
|
7 |
128 |
Disconnect on escape code |
|
*The 1.5K-byte non-ARQ buffer allows data transfer with Xmodem- and Ymodem- type file transfer protocols without using flow control
The 128-byte option lets remote users with slower modems keep data you are sending from scrolling off their screens
The 128-byte option lets remote users with slower modems keep data you are sending from scrolling off their screens. When remote users send your computer an XOFF (Ctrl-S) and you stop transmitting, the data in transit from your modem's buffer does not exceed the size of their screen. This is also very helpful in situations when a remote modem/printer application is losing characters |
|
S14 |
0 |
Reserved |
|
S15 |
0 |
Bit-mapped register setup
To set the register, see instructions for S13. |
|
Bit |
Value |
Result |
|
0 |
1 |
Disable ARQ/MNP for V.22 |
|
1 |
2 |
Disable ARQ/MNP for V.22bis |
|
2 |
4 |
Disable ARQ/MNP V.32/V.32bis |
|
3 |
8 |
Disable MNP handshake |
|
4 |
16 |
Disable MNP level 4 |
|
5 |
32 |
Disable MNP level 3 |
|
6 |
64 |
MNP incompatibility |
|
7 |
128 |
Disable V.42 operation |
|
To disable V.42 detect phase, select the total of the values for bits 3 and 7. (S15=136{the sum of values 8 and 128}) |
|
S16 |
0 |
Reserved |
|
S17 |
0 |
Reserved |
|
S18 |
0 |
Test timer for &T loopback testing
Sets the time in seconds of testing before the modem automatically times out and terminates the test
When set to 0, the timer is disabled
Valid range is 1-255 |
|
S19 |
0 |
Sets the duration, in minutes, for the inactivity timer
The timer activates when there is no data activity on the phone line; at time-out the modem hangs up
S19 = 0 disables the timer |
|
S20 |
0 |
Reserved |
|
S21 |
10 |
Sets the length, in 10-millisecond units, of breaks sent from the modem to the computer; applies to MNP or V.42 mode only
|
|
S22 |
17 |
Stores the ASCII decimal code for the XON character |
|
S23 |
19 |
Stores the ASCII decimal code for the XOFF character |
|
S24 |
0 |
Reserved |
|
S25 |
20 |
Sets the duration, in hundredths of a second, that DTR must be dropped so that the modem does not interpret a random glitch as a DTR loss
Most users will want to use the default
This register is useful for setting compatibility with older systems running under older operating software |
|
S26 |
0 |
Reserved |
|
S27 |
0 |
Bit-mapped register setup To set the register, see instructions for S13 |
|
Bit |
Value |
Result |
|
0 |
1 |
Enables ITU-T V.21 modulation at 300 bps for overseas calls; in V.21 mode, the modem answers both overseas and domestic (U.S. and Canada) calls, but only originates V.21 calls
Default is Bell 103 |
|
1 |
2 |
Enables unencoded (non-trellis coded) modulation in V.32 mode |
|
2 |
4 |
Disables V.32 modulation |
|
3 |
8 |
Disables 2100 Hz answer tone to allow two V.42 modems to connect faster |
|
4 |
16 |
Enables V.23 fallback mode |
|
5 |
32 |
Disables V.32bis mode |
|
6 |
64 |
Disable V.42 selective reject |
|
7 |
128 |
Software compatibility mode This setting disables the codes and displays the 9600 code instead
The actual rate of the call can be viewed on the ATI6 screen.
Used for unusual software incompatibilities
Some software may not accept 7200, 12,000, and 14,400 bps or greater result codes |
|
S28 |
0 |
Eliminates the V.32 answer tones for a faster connection Default item, all times are in tenths of seconds 255 Disables all connections except V.32 at 9600 bps
|
|
S29 |
20 |
Sets the duration, in tenths of a second, of the V.21 answer mode fallback timer |
|
S30 |
0 |
Reserved |
|
S31 |
128 |
Reserved |
|
S32 |
2 |
Bit-mapped register setup To set the register, see the instructions for S13
|
|
Bit |
Value |
Result |
|
0 |
1 |
V.8 Call Indicate enabled |
|
1 |
2 |
Enables V.8 mode |
|
2 |
4 |
Reserved |
|
3 |
8 |
Disable V.34 modulation |
|
4 |
16 |
Disable V.34+ modulation |
|
5 |
32 |
Disable 56K modulation |
|
6 |
64 |
Disable V.90 modulation. |
|
7 |
128 |
Reserved |
|
S33 |
0 |
Bit-mapped register setup To set the register, see the instructions for S13
|
|
Bit |
Value |
Result |
|
0 |
1 |
Disable 2400 symbol rate |
|
1 |
2 |
Disable 2743 symbol rate |
|
2 |
4 |
Disable 2800 symbol rate |
|
3 |
8 |
Disable 3000 symbol rate |
|
4 |
16 |
Disable 3200 symbol rate |
|
5 |
32 |
Disable 3429 symbol rate |
|
6 |
64 |
Reserved |
|
7 |
128 |
Disable shaping |
|
S34 |
0 |
Bit-mapped register setup To set registers, see instructions for S13 |
|
Bit |
Value |
Result |
|
0 |
1 |
Disable 8S-2D trellis encoding |
|
1 |
2 |
Disable 16S-4D trellis encoding |
|
2 |
4 |
Disable 32S-2D trellis encoding |
|
3 |
8 |
Disable 64S-4D trellis encoding |
|
4 |
16 |
Disable non-linear coding |
|
5 |
32 |
Disable TX level deviation |
|
6 |
64 |
Disable Pre-emphasis |
|
7 |
128 |
Disable Pre-coding |
|
S35-S37 |
0 |
Reserved |
|
S38 |
0 |
Sets an optional delay, in seconds, before a forced hang-up and clearing of the Transmit buffer when DTR drops during an ARQ call. This allows time for a remote modem to acknowledge receipt of all transmitted data before it is disconnected. The modem immediately hangs up when DTR drops.
This option only applies to connections terminated by dropping DTR. If the modem receives the ATH command, it ignores S38 and immediately hangs up. |
|
S39-S40 |
0 |
Reserved |
|
S41 |
0 |
Bit-mapped register setup To set registers, see instructions for S13
|
|
Bit |
Value |
Result |
|
0 |
1 |
|
|
1 |
2 |
Speakerphone connect message override (voice products only). |
|
2 |
4 |
Reserved. |
|
3 |
8 |
Message waiting (voice products only). |
|
4 |
16 |
Reserved. |
|
5 |
32 |
Reserved. |
|
6 |
64 |
Reserved. |
|
7 |
128 |
Reserved. |
|
S42 |
0 |
Reserved |
