Thanks for the reply, Steve! No, I haven't done a trace route when the issue have occurred, I'll try and do that. But from past experience, if a backbone provider has issues with their routers, they are usually handled within days or at least weeks.
As for our internal equipment, we just replaced our router/DSL modem, and between the server in question and the ADSL modem there is only a single switch. Since internal calls are processed just fine, as well as external going to other SIP-providers, I don't think there's an issue with the switch or ADSL router/modem. Regards, Bjorn -----Opprinnelig melding----- Fra: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] På vegne av steve Sendt: 22. mars 2006 23:11 Til: [email protected] Emne: [Asterisk-Users] re: Sound issues on SIP-SIP calls When you hear echo its actually being caused by the other phone. check your zapata.conf file and see if echotraining=yes. Echo can be caused by lots of things so this is just a starting point. For several months now weve been experiencing a really strange problem with sound which best can be explained as choppy/stuttery, and with a touch of echo on top. Basically, parts of a conversation might be choppy, but often combined with some echo as well. The sound problem can only be heard by us, not by the other party. But this is the strange part: The problem only occurs periodically, and only towards one single SIP provider. All our equipment is SIP based (we use Cisco 79XX equipment with firmware 7.5 and 8.x), and we have no PSTN lines. Since this has been lasting for months, I dont know the exact time the problem occurred at first. I recall everything as fine when I ran Asterisk 1.0.7, but through 1.0.9, 1.2.2 and 1.2.5 (HEAD) this problem persists. However, I have a hard time believing this is caused by a bug. Why? Well, as said, we have no problems with other providers. In addition, we have Cisco phones that communicate with Asterisk at the office (traffic is switched between two local subnets) and also over the internet, and all calls made between these phones are completed without any trouble. _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- Asterisk-Users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.385 / Virus Database: 268.2.6/288 - Release Date: 22.03.2006 -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.385 / Virus Database: 268.2.6/288 - Release Date: 22.03.2006 _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- Asterisk-Users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
