asterisk users - Jan 2006 - Leftover sound on isdn modem channel

Hi,

I have a strange problem on some isdn modem channels.  (* 1.0.9 / 
chan_modem / 2xHFC-S cards).

Everything works fine but when the 2nd (and 3rd etc..) call comes in and 
* answers and there is about a 1/2 second of sound from the previous 
call (ivr) before the sound from the new call is heard.  It just sounds 
bad and is quite annoying.

I am assuming this is sound that is still in a buffer in * or on the 
modem but can not find any way to get rid of it. I considered muting the 
channel for 0.75s after answering but could not find a way to do that 
either.

Any suggestions?

Tx

M

-- 

"Opportunity is missed by most people because it is
dressed in overalls and looks like work."

Thomas Alva Edison - Inventor of 1093 patents,
including the light bulb, phonogram and motion pictures.

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On Wed, February 1, 2006 7:51, Marnus van Niekerk said:
> Hi,
>
> I have a strange problem on some isdn modem channels.  (* 1.0.9 /
> chan_modem / 2xHFC-S cards).
>
> Everything works fine but when the 2nd (and 3rd etc..) call comes in and
> * answers and there is about a 1/2 second of sound from the previous
> call (ivr) before the sound from the new call is heard.  It just sounds
> bad and is quite annoying.
>
> I am assuming this is sound that is still in a buffer in * or on the
> modem but can not find any way to get rid of it. I considered muting the
> channel for 0.75s after answering but could not find a way to do that
> either.
>
> Any suggestions?
>
What ISDN driver set are you using? (Zap/Bristuff/vISDN/mISDN/CAPI?)

I see (hear!) the same, but only when using vISDN, bot BRIstuff (haven't
tried mSIDN/CAPI)

-- 
Francesco Peeters
 PalmOS user since Pilot1000
  Tungsten|T3 owner, still learning new DateBK5 tricks every day!