[Asterisk-Users] X101P on a UK BT line ---- txgain issue

[Nicolas Gudino]

Hi Richard,

> These complex impedances are all supported in the Silabs chips used in 
> both the new TDM FXO module and the FXS module, but the driver currently 
> sets them to 600 Ohms.
> 
> I guess at some stage a patch will appear to perhaps set these depending 
> on the default tonezone set in the config files.

This was submited today to CVS (answer to your prays?):

Update of /usr/cvsroot/zaptel
In directory mongoose.digium.com:/tmp/cvs-serv10293

Modified Files:
        wcfxs.c 
Log Message:
Add support for international impedence matching (improves echo abroad!)


Index: wcfxs.c
===================================================================
RCS file: /usr/cvsroot/zaptel/wcfxs.c,v
retrieving revision 1.73
retrieving revision 1.74
diff -u -d -r1.73 -r1.74
--- wcfxs.c     23 Jun 2004 18:24:21 -0000      1.73
+++ wcfxs.c     25 Jun 2004 14:34:07 -0000      1.74
@@ -28,7 +28,6 @@
 #include <linux/errno.h>
 #include <linux/module.h>
 #include <linux/init.h>
-#include <linux/usb.h>
 #include <linux/errno.h>
 #include <linux/pci.h>
 
@@ -90,6 +89,95 @@
 {43,"LOOP_CLOSE_TRES_LOW",0x1000},
 };
 
+static struct fxo_mode {
+       char *name;
+       int ohs;
+       int ohs2;
+       int rz;
+       int rt;
+       int ilim;
+       int dcv;
+       int mini;
+       int acim;
+} fxo_modes[] =
+{
+       { "FCC", 0, 0, 0, 0, 0, 0x3, 0, 0 },    /* US, Canada */
+       { "TBR21", 0, 0, 0, 0, 1, 0x3, 0, 0x2 },/* Austria, Belgium,
Denmark, Finland, France, Germany, 
+                                                                                  Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands,
+                                                                                  Norway, Portugal, Spain, Sweden, Switzerland, and UK */
+       { "ARGENTINA", 0, 0, 0, 0, 0, 0x3, 0, 0 },
+       { "AUSTRALIA", 1, 0, 0, 0, 0, 0, 0x3, 0x3 },
+       { "AUSTRIA", 0, 1, 0, 0, 1, 0x3, 0, 0x3 },
+       { "BAHRAIN", 0, 0, 0, 0, 1, 0x3, 0, 0x2 },
+       { "BELGIUM", 0, 1, 0, 0, 1, 0x3, 0, 0x2 },
+       { "BRAZIL", 0, 0, 0, 0, 0, 0, 0x3, 0 },
+       { "BULGARIA", 0, 0, 0, 0, 1, 0x3, 0x0, 0x3 },
+       { "CANADA", 0, 0, 0, 0, 0, 0x3, 0, 0 },
<super big snip>

-- 
Nicolas Gudino <nicolas at house.com.ar>
House Internet S.R.L.