Added new layer 2 and 3 protocols for Fax and DSP functions.

Moved "Add CPN to RING message" to new register S23,
"Display message" is now correct on register S13 bit 7.
New audio command AT+VDD implemented (deactivate DTMF decoder and
activate possible existing hardware/DSP decoder).
This commit is contained in:
Armin Schindler 1999-07-11 17:17:30 +00:00
parent 9924cb292d
commit 2994589752
3 changed files with 18 additions and 5 deletions

View File

@ -228,8 +228,11 @@ README for the ISDN-subsystem
8 = V.110, 19200 baud
9 = V.110, 38400 baud
10 = Analog Modem (only if hardware supports this)
15 0 Layer-3 protocol: (at the moment always 0)
11 = Fax G3 (only if hardware supports this)
15 0 Layer-3 protocol:
0 = transparent
1 = transparent with audio features (e.g. DSP)
2 = Fax G3 (S14 has to be set to 11)
16 250 Send-Packet-size/16
17 8 Window-size (not yet implemented)
18 4 Bit coded register, Service-Octet-1 to accept,
@ -258,6 +261,9 @@ README for the ISDN-subsystem
Set on incoming call (during RING) to
octet 3a of calling party number IE (Screening info)
See section 4.5.10 of ITU Q.931
23 0 Bit coded register:
Bit 0: 0 = Add CPN to RING message off
1 = Add CPN to RING message on
Last but not least a (at the moment fairly primitive) device to request
the line-status (/dev/isdninfo) is made available.

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@ -58,6 +58,17 @@ The following commands are supported:
AT+VSD=? Report possible parameters.
AT+VSD? Show current parameters.
AT+VDD=x,y Set DTMF-detection parameters.
Only possible if online and during this connection.
Possible parameters:
x = 0 ... 15 sensitivity threshold level.
(default 0 , I4L soft-decode)
(1-15 soft-decode off, hardware on)
y = 0 ... 255 tone duration in units of 5ms.
Not for I4L soft decode (default 8, 40ms)
AT+VDD=? Report possible parameters.
AT+VDD? Show current parameters.
AT+VSM=x Select audio data format.
Possible parameters:
2 = ADPCM-2

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@ -21,12 +21,8 @@ It is meant to be used with isdn4linux, an ISDN link-level module for Linux.
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
NOTE : Since the eicon driver is still experimental, this README file
may be incomplete and not up to date.
However, the driver should work under following conditions :
Supported Cards
---------------