Multi-Tech Systems MT5634ZBA-DID manual S42, Value Digital loss

MultiModemDID User Guide	Chapter 4 - AT Commands, S-Registers, Result Codes
	17	48000 bps
	18	49333 bps
	19	50666 bps
	20	52000 bps
	21	53333 bps
	22	54666 bps
	23	56000 bps

S42	decimal	0–1	1	Enables/disables the 56K auto rate. When
				56K auto is disabled, fallback to V.34 is also
				disabled. 0 = disable; 1 = enable.
S48	decimal	7 or 128	7	Enables (7) or disables (128) LAPM
				negotiation. The following table lists the S36
				and S48 configuration settings for certain
				types of connections.
					S48=7	S48=128
				S36=0, 2	LAPM or hangup	Do not use
				S36=1, 3	LAPM or async	Async
				S36=4, 6	LAPM, MNP, or hangup	MNP or hangup
				S36=5, 7	LAPM, MNP, or aysnc	MNP or async
S89
	seconds	0, 5–255	0	Sets the length of time in the off-line
				command mode before the modem goes
				into standby mode. A value of zero prevents
				standby mode; a value of 1–4 sets the value
				to 5.
S108	decimal	0–3, 6, 7	6	Selects the 56K digital loss if using the
				modem thru a PBX line. The default value is
				-6 dB loss, the value used when calling from
				a typical POTS line long distance.
				Value	Digital loss
				0	-0 dB digital loss, no robbed-bit
					signaling
				1	-3 dB PBX digital loss
				2	-2 dB digital loss
				3	-3 dB digital loss
				6	-6 dB digital loss
				7	-0 dB digital loss with robbed-bit
					signaling

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