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Appendix A. AT Commands and S-Registers
61202.153L3-1 Express XRT User Guide 67
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
5=V110
6=V.120
11=Fallback
12=PPP async-to sync conversion
S58 CALL SCREEN-
ING
Allows the Express XRT to screen incoming
calls.
0=Answer any call
1=Answer only calls from numbers match-
ing those stored in SN0 through SN9.
SS60 SPID1 LOC SPID string location (only for use in North
America).
SS61 SPID2 LOC SPID string location (only for use in North
America).
SS62 LDN1 LOC ISDN phone number string location.
SS63 LDN2 LOC ISDN phone number string location
S65 AUTOSPID Sets the AutoSpid determination feature
(only for use in North America).
0=Disable (default)
1=Enable
SS67 AREA CODE Area code location (only for use in North
America).
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