Specifications

Appendix A. AT Commands and S-Registers
61203153L3-20 Express 3000 SP User Manual A-13
S53 Call Type
Call type (Dial service only).
0=Speech
1=Audio
2=56 Kbps data
3=64 Kbps data
S54 Protocol Type
Rate adaption protocol type.
2=Async BONDING
6=V.120
11=Fallback
12=PPP async-to sync conversion
S58 Call Screening
Allows the Express 3000 SP to screen incoming calls.
0=Answer any call
1=Answer only calls from numbers matching those stored
in SN0 through SN9.
S68 Life Line POTS
POTS interface active during span power mode.
1=POTS Interface 1
2=POTS Interface 2
S71 DTE Rate
Selects the DTE connector bit rate.
3 = 1200
6 = 2400
8 = 4800
11 = 9600
15 = 19200
17 = 38400
20 = 57600
23 = 115200
25 = 230400
S72 Data Bits
Selects the number of asynchronous data bits.
0 = 8 bits
1 = 7 bits
S73 DTE Parity
Selects the number of asynchronous parity bits.
0=None
1=Odd
2=Even
S74 DTE Stop
Selects the number of asynchronous parity bits.
0=None
1=Odd
2=Even
S-Registers List
(Continued)
Command
Function Features