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/?law 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@alpha-lab.net web: http://alpha-lab.net
Just a thought: do you have DSL on the PSTN line and are you using a line filter? MARK. Jochen Witte wrote:>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/?law >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@alpha-lab.net >web: http://alpha-lab.net > > >_______________________________________________ >Asterisk-Users mailing list >Asterisk-Users@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 > >
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@lists.digium.com [mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Jochen Witte Sent: Wednesday, 27 July 2005 10:48 PM To: asterisk-users@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/?law 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@alpha-lab.net web: http://alpha-lab.net _______________________________________________ Asterisk-Users mailing list Asterisk-Users@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
The PSTN line is plain PSTN as provided by the carrier. The setup works correctly with other SIP endpoints. -- Jochen Witte email: jwitte@alpha-lab.net web: http://alpha-lab.net> -----Urspr?ngliche Nachricht----- > Von: asterisk-users-bounces@lists.digium.com [mailto:asterisk-users- > bounces@lists.digium.com] Im Auftrag von MF Hulber > Gesendet: Mittwoch, 27. Juli 2005 18:28 > An: Asterisk Users Mailing List - Non-Commercial Discussion > Betreff: Re: [Asterisk-Users] Klicking sounds in background > > Just a thought: do you have DSL on the PSTN line and are you using a > line filter? > > MARK. > > Jochen Witte wrote: > > >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/?law > >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@alpha-lab.net > >web: http://alpha-lab.net > > > > > >_______________________________________________ > >Asterisk-Users mailing list > >Asterisk-Users@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 > > > > > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@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