[asterisk-users] twice normal beep before busy tone ??

Stefan Guenther asterisk02 at in-put.de
Thu Nov 6 12:13:36 CST 2008


Eric wrote:

 >It sounds like you have analog lines.  If that is the case, the silence
 >you experience is Asterisk sending the DTMF down the line.  Asterisk
 >collects the DTMF and when you are done dialing it retransmits those
 >digits down the analog line.  I think each digit is by default 300ms.
 >If you are dialing 10 digits you have a delay of 3.3 seconds while
 >Asterisk is sending the DTMF.  None of the VoIP protocols have his
 >issue.  ISDN PRI or BRI also does not have this issue.
 >
GREAT! Our client has 4 ISDN lines and we are using a DIALOGIC 4Port 
BRI. But the exchange point (don't know how to translate 
"Vermittlungsstelle) of the German Telecom is nearly 5 KM away. Maybe 
this distance causes the trouble?

Stefan
-- 


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