[asterisk-users] SPA 3000 won't relay DTMF to doorphone

[Doug Crompton]

I am using spa3000 hardware - 2.0.1(5673) firmware - 3.1.3(GWa)
I have used newer firmwares but find that 3.1.3 had less echo problems.

Connect a real analog phone to spa3000 fxs.  Call it from another source,
when connected send DTMF tones from that source. You should hear at least
100ms or more of the tone. inband should work. I suspect you are using
alaw or ulaw codecs. There is really no reason to use anything else. When
it does not work you will hear nothing more then a click or an ocassional
to short tone.

Another thing to check is that you should not be using any transfer
options in your dial statement (t or T or other special features.

You really have to listen to this to check it and make changes. Be sure to
restart both spa3000 and asterisk when you make changes. Otherwise you can
get fooled.

If you are making the call from the spa3000 fxo to fxs, you need to have
inband in BOTH.

This is a known bug in Asterisk<>spa3000 for dtmf. I think the problem is
somewhat shared but improvements in 1.4 may gelp or fic the problem. I am
using 1.2 so I cannot answer that.

Basically when using the spa3000 you have to make the choice of wether you
want to be able to use dtmf features (transfer etc.)OR have the capability
to send DTMF to or from the caller or callee. you really can't have both.
Thus inband vs. rfc2833. I chose inband so I can interact with called
ivr's and call in from pstn and access my VM.

Doug


On Fri, 12 Jan 2007, Louis-David Mitterrand wrote:

> On Fri, Jan 12, 2007 at 10:58:16AM -0500, Doug Crompton wrote:
> > The spa3000 does not play well with Asterisk with dtmf rfc2833 signaling.
> > Set BOTH the sip.conf AND the spa3000 to inband for DTMF. That would be
> > the line1 tab on spa3000. This applies to the fxo (pstn) also if you are
> > using it for such things as ivr's.
>
> Thanks for your suggestion. We tried that without success (using firmware
> 3.1.7(GWc))
>
> Do you think an upgrade to 3.1.10 might be warranted?
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"Those that sacrifice essential liberty to obtain a little temporary safety
 deserve neither liberty nor safety."  -- Ben Franklin (1759)

****************************
*  Doug Crompton	   *
*  Richboro, PA 18954	   *
*  215-431-6307		   *
*		  	   *
* doug at crompton.com        *
* http://www.crompton.com  *
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