At!c1=n, At!c4=n, At!c5=n – Eicon Networks DIVA T/A ISDN Modem User Manual
Page 32: At!c6=n, At!c7=n, At!d1=n, At!d2=n

ISDN Configuration Commands
DIVA T/A ISDN Modem Reference Guide
◆ Page 32
AT!C1=n
ISDN Switch Type. Specifies the ISDN Switch Type.
For North American Firmware:
n=0
National ISDN
n=1
AT&T 5ESS Custom
n=9
Auto-detect switch type (default for North America). The DIVA T/A automatically
determines the correct switch type to be used (National ISDN or AT&T 5ESS
Custom).
For International Firmware:
n=2
EuroISDN (default).
n=3
Australia - Microlink (TPH1962/TS013).
n=4
INS-Net64 (Japan).
n=5
China ISDN.
n=6
Singapore
n=11 Australia - OnRamp (Telstra's ETSI service)
Note: This parameter does not take effect until you restart your DIV AT/A.
AT!C4=n
Enable/Disable Non-Initializing mode (first B-channel) (North American only).
Specifies whether the first B-channel is set to Non-Initializing mode.
n=0
Disable Non-initializing mode (default).
n=1
Enable Non-initializing mode.
Note: This parameter does not take effect until you restart your DIV AT/A.
AT!C5=n
Enable/Disable Non-Initializing mode (second B-channel) (North American only).
Specifies whether the second B-channel is set to Non-Initializing mode.
n=0
Disable Non-initializing mode (default).
n=1
Enable Non-initializing mode
Note: This parameter does not take effect until you restart your DIV AT/A.
AT!C6=n
SPID Number for 1st B-channel (North American only). The SPID (Service Profile
Identifier) as assigned by your local telephone company. This number is a unique ID
which identifies an ISDN terminal to the local ISDN switch.
Default: null string.
Note: This parameter does not take effect until you restart your DIV AT/A.
AT!C7=n
SPID Number for 2nd B-channel (North America only). The SPID (Service Profile
Identifier) as assigned by your local telephone company. This number is a unique ID
which identifies an ISDN terminal to the local ISDN switch.
Default: null string.
Note: This parameter does not take effect until you restart your DIV AT/A.
AT!D1=n
Default DTE Speed. Specifies the speed of the DTE, when the DTE characteristics
cannot be determined by AutoBauding (AT has not been typed since power up).
Values: 1200, 2400, 3600, 4800, 7200, 9600, 12000, 14400, 19200, 24000, 28800,
38400, 57600, 64000, 115200 or 230400.
Default: 115200.
AT!D2=n
Default Databits Length. Specifies the length of the Databits, when the DTE
characteristics cannot be determined by AutoBauding (AT has not been typed since
power up).
Values: 7, 8.
Default: 8.