Multi-Tech Systems MT5600BL, MT5600BA manual S36

4 AT Commands, S-Registers, and Result Codes

Register Unit		Range	Default	Description
S36	decimal	0–7	7	LAPM Failure Control. Specifies the fall-
				back action to take in the event of an LAPM
				negotiation failure. These fallback options
				are initiated immediately upon connection
				if S48 is set to 128. If an invalid number is
				entered, S36 acts as if the default value has
				been entered. (See S48.)
				0	Modem disconnects.
				1	Modem stays online and a direct mode
					connection is established.
				2	Reserved.
				3	Modem stays on-line and a normal
					mode connection is established.
				4	An MNP connection is attempted and
					if it fails, the modem disconnects.
				5	An MNP connection is attempted and
					if it fails, a direct mode connection is
					established.
				6	Reserved.
				7	An MNP connection is attempted and
					if it fails, a normal modem connection
					is established.
S37	decimal	0–12	0	Sets the maximum V.34 speed at which the
				modem attempts to connect. The default
				value attempts an automode connection. If
				N0 is active, connection is attempted at the
				most recently sensed serial port speed
				(+MS= command settings are updated to
				the appropriate values). If N1 is active,
				connection is attempted at the highest possi-
				ble speed. (+MS= settings are updated to
				11,1,300,33600 to reflect V.34, automode,
				300 bps minimum speed, and 33600 bps
				maximum speed). Supported only for com-
				patibility with existing software; use the
				+MS= command instead.
S38	seconds	0–254, 255	20	Sets the delay between the modem’s receipt of
				the H command to disconnect (or high-to-

low transition of DTR if the modem is pro- grammed to follow the signal), and the disconnect operation. Applies only to error- correction connections. This register can be used to ensure that data in the modem buffer is sent before the modem disconnects. If S38 is set to a value between 0 and 254, the modem waits for the remote modem to ac- knowledge all data in the modem buffer before disconnecting. If S38 is set to 255, the modem does not time out, and continues to

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