Solvline MultiModem - Manual (Page 24)

24
Using AT Commands
Default : 1
- ATHn ; Switch-Hook Control
This command is used when connecting or opening the hook relay in the state of inputting a
command. In the online status, it is also used when entering the offline status, after escaping in
the command status by the Escape Sequence "+++". This command is applied in the
asynchronous mode only.
Parameter : 0,1
H0 : On-Hook : Open (When putting the receiver down)
H1 : Off-Hook : Connected (When picking up the receiver)
- ATIn : Product Code and Memory Identification
If the “IO” command is inputted, the modem shows the product code of the device.
If the “I1" command is inputted, the modem shows the product code of the device. The "I1"
command is output with the 3-digit results by calculating the check sum of ROM of the modem.
The "I2" command examines the memory inside of the modem. If the memory is normal, it
delivers an “OK” message, and if it is abnormal, it shows an “Error” message.
. Parameter : 0 ~ 2
I0 : Product code identification
I1 : Outputs FIRMWARE check-sum
I2 : Calculates FIRMWARE check- sum and outputs an “OK” or “Error” message.
- ATLn : Speaker Volume Control
. Parameter : 0 ~ 3
. Default : 2
L, L0, L1 : Low L2 : Medium L3 : High
- ATMn : Speaker Control
Controls the operations of the speaker when the modem receives a carrier or is dialing, and it is
capable of turning on or off the sound of the speaker.
. Parameter : 0 ~ 3
. Default : 1
M, M0 : No speaker function
M1 : Operates until the receiving carrier is detected.
M2 : Operates all the time