patch-2.2.11 linux/Documentation/isdn/README.audio

• Lines: 54
• Date: Mon Aug 9 12:04:38 1999
• Orig file: v2.2.10/linux/Documentation/isdn/README.audio
• Orig date: Tue Apr 28 14:22:04 1998

diff -u --recursive --new-file v2.2.10/linux/Documentation/isdn/README.audio linux/Documentation/isdn/README.audio
@@ -1,4 +1,4 @@
-$Id: README.audio,v 1.5 1997/02/23 23:53:46 fritz Exp $
+$Id: README.audio,v 1.8 1999/07/11 17:17:29 armin Exp $
 
 ISDN subsystem for Linux.
   Description of audio mode.
@@ -50,13 +50,25 @@
                          the application. See below for data format
 
         AT+VSD=x,y       Set silence-detection parameters.
-                         NO EFFECT, supported for compatibility
-                         only. Possible parameters:
-                           x = 0 ... 31
-                           y = 0 ... 255
+                         Possible parameters:
+                           x = 0 ... 31  sensitivity threshold level.
+                                         (default 0 , deactivated)
+                           y = 0 ... 255 range of interval in units
+                                         of 0.1 second. (default 70)
         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
@@ -102,13 +114,14 @@
     <DLE>C                  Touchtone "C" received.
     <DLE>D                  Touchtone "D" received.
 
+    <DLE>q                  quiet. Silence detected after non-silence.
+    <DLE>s                  silence. Silence detected from the
+                            start of recording.
+
     Currently unsupported DLE sequences:
 
     <DLE>c                  FAX calling tone received.
     <DLE>b                  busy tone received.
-    <DLE>q                  quiet. Silence detected after non-silence.
-    <DLE>s                  silence. Silence detected from the
-                            start of recording.
 
   Audio playback.