User Guide

ISDN Router Manual V.1.1
51
6.2.2 AT Command List
* means default setting
Command Description Value Remark
ATA
Manual answer
Answer an incoming data call
ATD
Dialing
Dial the destination number
Max main address : 20 digits
Max sub-address : 5 digits
0-9
+
ATD4125678+ 123
• Dialing digits
• Sub-address delimiter
ATDSn
Speed dialing
0-19 Speed dialing number
ATEn
Echo command
Define whether characters are echoed
back from the TA to the DTE within
command mode.
0
*1
• No echo
• Echo
ATH
Hang up
Hang up the connection
Type ATH during the RING will reject
the call
ATIn
Interrogate the TA product status
0
1
2
3
4
• Display useful AT commands
• Display modem configuration
• Supported switch type
• Software release date
• Software version
ATL
Dialing the latest number
ATD4125678
Then ATDL will dial 4125678 again
ATO
Return to on-line state
Return from command mode to data
mode
ATQn
Return result codes select
Defines whether or not the TA will issue
result codes to the DTE
*0
1
• result code returned
• not returned
ATSn=x
Set S register
Change S register value
n
x
• S register number
• setting value
ATVn
Verbose mode
Defines the form of result codes returned
by the TA
0
*1
• Numeric form responses enabled
• Verbose responses enabled (English
responses)
ATWn
Connection message format select
Defines the type of (extended )
negotiation result codes to return.
*0
1
• Negotiation codes reported in 1
line format : (CONNECT)
• 3 line format (Hayes format )
(CONNECT xxx)
(PROTOCOL xxx)
(CARRIER xxx)
ATXn
Result code set select
DescriptionSelect the result code set.
*0
1
• Data result codes 0-4 enabled
• All supported data result codes
Enabled
ATZn
Reset/recall user profile
The user configuration stored in the non-
volatile memory is recalled to become the
active configuration.
0
1
• Reset the TA and recall user profile
• Reset the TA and load default value
(except stored dial number, own-
address, sub-address and
accumulated charge)