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ATH
Hang up the ISDN data calls
ATH1
Disconnect ISDN Phone voice calls
ATH3
Disconnect ISDN data calls and ISDN Phone voice calls
ATI3
View driver version
ATO
Return to connection (on-line) mode
AT!C0=n
ISDN D-channel protocol and switches selection
n=00
AT&T 5ESS Custom
n=01
Northern Telecom DMS-100 Custom
n=02
ETSI Europe ISDN
n=05
U.S. National ISDN-1 (NI-1), factory default
n=06
INS 64 , for Japan
AT!C6=n
Set Service Profile ID 0 (SPID 0), where " n" is the SPID
number up to 20 characters. Example, ISDN phone
number: 5551000 SPID 0: 0555100001
AT!C2=n
Set Service Profile ID 1 (SPID 1), where " n" is the SPID
number up to 20 characters. Example, ISDN phone
number: 5553000 SPID 1: 0555300001
AT!N0=n
Set ISDN Directory Number 0 (DN 0), where "n" is the
ISDN phone number. Example, DN 0: 5551000 =>
n=5551000
AT!N1=n
Set ISDN Directory Number 1 (DN 1), where "n" is the
ISDN phone number. Example, DN 1: 5553000 =>
n=5553000
AT!Q=n n=0
Set B-channel speed to 64 K
n=4
Set B-channel speed to 56 K
AT!V=n n=0
The incoming voice-grade calls are answered by ISDN
Phone
n=1
The incoming voice-grade calls are answered by modem
(Modem over ISDN)
n=2
Enable audio speech
