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test.
T5 : Prohibits it from responding to the approval request of the modem in remote digital
loopback.
T6 : Starts the remote digital loopback. Data received from the local DTE is transmitted to the
remote modem and looped back to the local modem and the DTE from the remote modem.
T7 : Starts a self test pattern of the remote digital loopback. This test is the same as T6, and the
local DTE does not transmit data. And the local modem compares regular data with
transmission data to count errors. Then, the local modem transmits error count values of the
final 3 digits to the DTE.
T8 : Starts a self test of analog loopback, and it is the same as the T6 test. It forms a simple
analog loopback with the test of T1, allowing a test with the transceive functions of the local
modem without connecting the substantial telephone line.
- AT&V : Present configuration and user profile display
Shows the presently-used state and the state of the user profile saved in the NVRAM. (Refer to
the AT&Yn)
- AT&Wn : Stores the user profile in the NVRAM.
This command stores the present command and the S register value in the NVRAM. It can keep
WO and W1 user profiles and calls them by the ATZn command.
. Parameter : n = 0, 1
. Default : None
- AT&Yn : Initialization of user profile
When power is supplied, it reads one of the two user profiles as an active profile.
. Parameter : n = 0, 1
. Default : 0
&Y0 : The user selects a profile 0
&Y1: The user selects a profile 1
- AT&Zn : Telephone number saving
Saves the telephone numbers in a specified buffer by „n‟.
. Parameter : n = 0~3
. Error : If „n‟ is out of the range, and in case „x‟ is over 24 digits.
- AT\Gn : Modem Flow Control(Modem to Flow Control)
