I've noticed that if I have people on speakerphone at the two farthest ends of our internal network, they will occasionally get a second or two of feedback. (sounds like jingle bells) I'm figuring it's some very slight amount of packet loss or jitter that isn't helped by the speakerphone echo, magnified into feedback briefly before the phone is able to shut it off. Basic reports on ping time or throughput look good, but VoIP traffic is a lot more finicky than that. I'm not relishing the idea of checking each individual port on each switch. Does anyone have recommendations on a way to test the quality of the path this voice traffic takes through the network? (Asterisk 1.8, Polycom phones)
Do you have QOS Priority set to 7 on these phones (VOIP should get your highest network priority unless you have critical data downloads)? -----Original Message----- From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Justin Sherrill Sent: Friday, October 28, 2011 2:11 PM To: asterisk-users at lists.digium.com Subject: [asterisk-users] Network testing for VoIP I've noticed that if I have people on speakerphone at the two farthest ends of our internal network, they will occasionally get a second or two of feedback. (sounds like jingle bells) I'm figuring it's some very slight amount of packet loss or jitter that isn't helped by the speakerphone echo, magnified into feedback briefly before the phone is able to shut it off. Basic reports on ping time or throughput look good, but VoIP traffic is a lot more finicky than that. I'm not relishing the idea of checking each individual port on each switch. Does anyone have recommendations on a way to test the quality of the path this voice traffic takes through the network? (Asterisk 1.8, Polycom phones) -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: lists.digium.com/mailman/listinfo/asterisk-users