Gilad Ben-Yossef wrote:
Is 200ms ping time too much for SIP, or is it irrelevant.
Very relevant. Callers usually notice roundtrip voice delays of 250ms
or more.The recommendation for VoIP is a one way delay of less then
150ms. Anything more will become very noticeable in conversation and
in real life 150ms is too high as well since jitter before induce
around 10ms addtional latency.
In your case, 200ms round trip time, assuming a symmetric
distribution, of delay (but mind you that the internet isn't really
symmetrical...) is 100ms one way delay so this is not excellent but
not really bad either. In theory, at least, you shouldn't be able to
notice this delay in conversation.
Forgot to add - here is a great resournce for all things VoIP & QoS:
http://www.voip-info.org/wiki-QoS
Gilad
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