asterisk users - Aug 2006 - strange behaviour of a zaptel device

Hi!

I am working hard on getting a useful attented transfer. (The built-in
atxfer feature isnt useful - because of calls getting lost - has been
discussed a few months ago)

I have all my analog phones on sipura boxes. With the flash hook i can
do such attended transfers without problems now.

But, the asterisk box is connected to a POTS line via a digium card. And
here I have a strange behaviour:

.) a call comes in (via the digium card)
.) Person A takes the call (on a sipura pap or spa device)
.) Person A presses the flash button and dials an other extension for
Person B
.) Person B hooks the phone off (sipura pap or spa), talks a few words
with Person A
.) Person A hooks the phone on.
.) the incoming call is transferred to Person B, BUT the caller on the
incoming call cant hear Person B, while Person B can hear the incoming
caller!


Does anyone have any hints for me ?  Asterisk at log level 10 doesnt
show anything... :-(


thx in advance,
Tom

Thomas Artner wrote:
> Hi!
> 
> I am working hard on getting a useful attented transfer. (The built-in
> atxfer feature isnt useful - because of calls getting lost - has been
> discussed a few months ago)
> 
> I have all my analog phones on sipura boxes. With the flash hook i can
> do such attended transfers without problems now.
> 
> But, the asterisk box is connected to a POTS line via a digium card. And
> here I have a strange behaviour:
> 
> .) a call comes in (via the digium card)
> .) Person A takes the call (on a sipura pap or spa device)
> .) Person A presses the flash button and dials an other extension for
> Person B
> .) Person B hooks the phone off (sipura pap or spa), talks a few words
> with Person A
> .) Person A hooks the phone on.
> .) the incoming call is transferred to Person B, BUT the caller on the
> incoming call cant hear Person B, while Person B can hear the incoming
> caller!
> 
> 
in sip.conf:
canreinvite = no   solved this issue


> Does anyone have any hints for me ?  Asterisk at log level 10 doesnt
> show anything... :-(
> 
> 
> thx in advance,
> Tom
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