Filter
Top Products
Appendix F - Modem AT Commands
RF300E/RF310E 179
6 = 2400 bps 15 = 24000 bps
7 = 4800 bps 16 = 26400 bps
8 = 7200 bps 17 = 28800 bps
9 = 9600 bps 18 = 31200 bps
10 = 12000 bps 19 = 33600 bps
S42 Enable / Disable Auto Rate
Unit: decimal
Range: 0-1
Default: 1 (enabled)
Enables and disables the 56K auto rate. Retrain and fallback are disabled in data mode. Set S42 to
zero (0) to disable auto rate, or 1 (the default) to enable auto rate.
S43 Enable / Disable V.32bis Start-up Auto Mode
Unit: decimal
Range: 0-1
Default: 1 (enabled)
Used for testing and debugging only. Enables and disables V.32bis start-up auto mode operation. Set
S43 to zero (0) to disable start-up auto mode, or 1 (the default) to enable start-up auto mode.
S89 Off-line Time
Unit: 1 second
Range: 0, 5-255
Default: 0
Sets the length of time, in seconds, a modem waits in the off-line command mode before it goes into
standby mode. If S89 is set to 20 seconds, the modem waits 20 seconds in off-line command mode
before going into standby mode. Setting S89 to zero (0) prevents the modem from ever entering
standby mode.
Setting S89 to any value between zero and five (1-4) effectively sets the value to five, because five
seconds is the minimum possible wait time.
S108 Line Code Control
Unit: Decimal
Range: 0, 1
Default: 1
Controls the line coding used by the modem.
S108 = 0 mu-law
S108 = 1 A-law (default)
S109 PCM Mode Control
Unit: Decimal
Range: 0–2
Default: 1
Controls the PCM ( pulse code modulation) mode (V.90 or K56Flex). Determines which mode the
modem will answer in for PCM connections.
S109 = 0 K56Flex support only
S109 = 1 Both V.90 and K56Flex supported
S109 = 2 V.90 support only