[asterisk-users] Network testing for VoIP

[Danny Nicholas]

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)
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