[Asterisk-Users] Klicking sounds in background

[Peter Childs]

Your ISDN clocking is slipping (or not sync'd).

Your digium PRI needs to clock off the ISDN.

See zaptel.conf on the Wiki and set something like...

Span=1,1,... (the second '1' is important.. Ie 'use as primary sync source')

http://www.voip-info.org/tiki-index.php?page=Zaptel.conf+span+sintax


--
 Peter Childs
 NEC Business Solutions Ltd
 Ph:61-8-8301-4908 Mb:61-4-0819-7693
 IM: pjcinaus (yahoo)


-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Jochen Witte
Sent: Wednesday, 27 July 2005 10:48 PM
To: asterisk-users at lists.digium.com
Subject: [Asterisk-Users] Klicking sounds in background



Hello,

I have an IVR with Intel HMP SIP stack, which is a peer behind my Asterisk
box (Asterisk 1.0.7, Digium PRI). When dialing in via PSTN, there are
klicking sounds in the background, which do not appear, when dialing in via
SIP (using Asterisk as pbx). The issue does not seem to be an alaw/µlaw
problem. 

I tried trunking two Asterisk boxes via IAX and then call via two asterisks,
but the same effect appears. Whenever there is PSTN involved, I have these
klicking sounds, when there is no PSTN, everything works correctly. 

The setup works great with different SIP peers (others than the Intel...)

Anyone has an idea?

Best regards
Jochen

--
Jochen Witte
email: jwitte at alpha-lab.net
web: http://alpha-lab.net 


_______________________________________________
Asterisk-Users mailing list
Asterisk-Users at lists.digium.com
http://lists.digium.com/mailman/listinfo/asterisk-users
To UNSUBSCRIBE or update options visit:
   http://lists.digium.com/mailman/listinfo/asterisk-users