Special AT Commands for Voice Functions
i-modul ISDN HIX V4
Command
Description
AT:1DISCI
Terminating a connection
An existing ISDN connection is disconnected with the specification of a
reason in hexadecimally encoded format with this command.
The reason is defined according to Q931/ETS 300 102-1. It is also possible
to disconnect a connection without specifying a reason (regular disconnec-
tion).
The call reference is released and no longer valid with this command.
AT:1DISCI<
cr>
C<
cv>
Disconnects the existing connection with the call reference
<
cr> with the specification of the reason
<
cv>
AT:1DISCI1C11
Disconnects the existing connection with the call reference
1 at port 1 with the specification of the reason 0x11 (User
busy)
AT:1RAI
Sending an alarm message
An alarm message for the call with a certain call reference is sent to the
network with this command.
AT:1RAI<
cr> Initiates an alarm request for the existing incoming call with
the call reference <
cr>
AT:1RAI1
Initiates an alarm request for the existing incoming call with
the call reference 1 at port 1
Table 16: Overview of the AT commands for controlling voice connections
14.3
Responses of AT Commands for Voice Connections
Each message, which is sent by the CODEC port of the i-modul ISDN HIX V4, starts
with ":1". There are no blanks between the different parameters of the messages.
Response
Description
:1CONNECTIDOB
Connection established
This response indicates that a connection with the remote terminal with the
specified call reference has been established.
:1CONNECTI
<cr>
D
<da>
O
<oa>
B
<xx>
I
<cr>
Specifies the call reference
<cr>
D
<da>
Specifies the target address
<da>
(dialled phone number)
O<oa>
Specifies the origin address
<oa>
(dialling phone number)
B
<xx>
Specifies the used B channel (hexadecimally encoded)
01 = B channel 1
is used
02 = B channel 2 is used
:1CONNECTI1D234O567B01
Indicates a connection at port 1 with the call reference 1,
the target address 234 and th origin address 567, which
uses the B channel 1
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