Hi all. I've got a project where I need to make outbound calls and play a prerecorded .wav file to the called number. So far, I've only been able to make about 15 concurrent calls before the cound quality gets poor, and I really need to increase this. I've got QoS configured to prioritize IAX2 traffic above all and my connection to the Internet is a PtoP 100Mb ethernet link. (255.255.255.252 subnet mask) The server is an AMD Athlon(tm) 64 Processor 3400+ with 512Mb of RAM. The Nic isn't sharing an IRQ with anything else and the CPU never exceeds 15% utilization. Any ideas where I can look for improvement? TIA, -- Mike Diehl
> So far, I've only been able to make about 15 concurrent calls before the cound > quality gets poor, and I really need to increase this.15 calls isn't very many at all.> I've got QoS configured to prioritize IAX2 traffic above all and my connection > to the Internet is a PtoP 100Mb ethernet link. (255.255.255.252 subnet mask) > > The server is an AMD Athlon(tm) 64 Processor 3400+ with 512Mb of RAM. The Nic > isn't sharing an IRQ with anything else and the CPU never exceeds 15% > utilization.You shouldn't see call problems with 15 calls with this box. You say yourself that the CPU isn't taxed and 512 MB RAM should be plenty for 15 calls. Perhaps there is problems with the Internet connection. Can you check at the receiving end if the packets are arriving on time with no loss? You could also check if they are leaving your box as scheduled, but I'd imagine that's not the problem. How do pings and traceroute look like with 15 calls up. Could you try SIP instead of IAX? Sounds like the problem might be upsteam from you. --Luki
Have you tested the actual throughput on the link? What's it max out... What kind of latency are you seeing as it gets loaded. Can you do a local call to your own internal network (softphone or hardphone) as the system gets loaded and play the same file. Do you have quality issues. This will help isolate if it's a network or server issue. Shouldn't be a server issue at that load...but never hurts to look. D -----Original Message----- From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Mike Diehl Sent: Tuesday, June 19, 2007 12:27 AM To: asterisk-users at lists.digium.com Subject: [asterisk-users] Need to increase call count Hi all. I've got a project where I need to make outbound calls and play a prerecorded .wav file to the called number. So far, I've only been able to make about 15 concurrent calls before the cound quality gets poor, and I really need to increase this. I've got QoS configured to prioritize IAX2 traffic above all and my connection to the Internet is a PtoP 100Mb ethernet link. (255.255.255.252 subnet mask) The server is an AMD Athlon(tm) 64 Processor 3400+ with 512Mb of RAM. The Nic isn't sharing an IRQ with anything else and the CPU never exceeds 15% utilization. Any ideas where I can look for improvement? TIA, -- Mike Diehl _______________________________________________ --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