asterisk users - Dec 2005 - weird problem with sipura spa2000 and sound card pa setup

Hello,
     Just joined this list in hopes of getting an answer to my problem and
helping others in the future.  Anyways here is my problem


     I have asterisk 1.2.1 installed and setup the onboad sound card to
autoanswer in the alsa.conf file to act as a pa system.  I currently have the
extention setup to 66 to dial the sound card

exten => 66,1,Dial(Console/dsp)

If I dial it using my 7940 cisco phone, it works just fine.  If I dial it using
a cisco ata 186, it works just fine.  If i dial from a phone connected to a
sipura spa-2000 i get the following error.

-----------------------------------------------------------------------------

    -- Executing Dial("SIP/sipura1-2-bbb8", "Console/dsp")
in new stack
 << Call placed to 'dsp' on console >>
 << Auto-answered >>
    -- Called dsp
    -- ALSA/default answered SIP/sipura1-2-bbb8
Dec 26 04:55:14 ERROR[7332]: chan_alsa.c:643 alsa_write: Write error: Unknown
error 170
 << Hangup on console >>
  == Spawn extension (localphone, 66, 1) exited non-zero on
'SIP/sipura1-2-bbb8'

-----------------------------------------------------------------------------

This leads me to believe I need to change a setting on the sipura for it must be
sending something asterisk doesn't like.  Other then this error, the sipura
works fine.  I can make and receive calls on it just fine thru either a true
voip connection or with my hard line with a x100p card.  I have tried dialing
the soundcard with 2 different sipura spa2000 and i get the same error with
both.  Anybody else run into this problem?


-Lee


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