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Chapter 5 – AT Commands, S-Registers, and Result Codes
Multi-Tech Systems, Inc. SocketModem MT5600SMI Developer’s Guide 54
Command: %U Select µ-Law or A-Law Codec Type
Description: Selects µ-Law or A-Law codec type for V.90 and 56K modulation.
This command also stores the selected setting directly to NVRAM.
Default: Default value is country specific
Defined Values: 0 Selects µ-Law.
1 Selects A-Law.
Result Codes: OK
Otherwise ERROR
Command: B CCITT or Bell
Description: When the modem is configured to allow either option, the modem will
select Bell or CCITT modulation for a line speed connection of 300 or 1200
bps. Any other line speed will use a CCITT modulation standard. The
parameter value, if valid, is written to S27 bit 6.
Default: 0
Defined Values: B0 Selects CCITT operation at 300 or 1200 bps during Call
Establishment and a subsequent connection. (Default.)
B1 Selects BELL operation at 300 or 1200 bps during Call
Establishment and a subsequent connection.
Result Codes: OK
Otherwise ERROR