MessageSaver User Guide
44
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.
S43 decimal 0–11 For testing and debugging only. Enables/
disables V.32bis start-up auto mode
operation. 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
LAPM or async Async
LAPM or hangup Do not use
LAPM, MNP, or aysnc
LAPM, MNP, or hangup MNP or hangup
MNP or async
S36=0, 2
S36=1, 3
S36=4, 6
S36=5, 7
S89 seconds 0, 5–255 10 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.
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
S109 decimal 0–2 1 Selects the 56K operating mode.
0 = K56flex mode (V.90 disabled)
1 = Dual mode (K56flex or V.90)
2 = V.90 mode (K56flex disabled)
Register Unit Range Default Description