Steve Glaus wrote:
Mike Hammett wrote:
I don't know everything that's going on as someone else has been
working on the project, but it hasn't really been going anywhere, so
I had some questions.
We've got some Snom 320s with Asterisk 1.2.9.1 (I believe). All was
well (with a previous release), but the phones started to get real
choppy. We are also running a softphone at this location and it was
fine. The SIP qualify was returning ping times anywhere from 20 to
70 ms over a sparsely used LAN. Command prompt (ICMP) pings were
under 1 ms. No amount of different Asterisk versions or phone
firmware revisions seems to solve this. All was well, then (as far
as we know) without changes, it crapped out.
I'm having much the same issues only I'm using Cisco 7960 phones. When
I do a 'sip show peers' I'm getting times in excess of 300ms. A soft
phone on the same network (x-lite), is reporting times of 4 ms.
Related to this (I think), I'm getting audio issues. The person being
called can hear the caller fine but the callee's voice drops in and
out excessively.
I have qualify set to yes in the sip definitions for all the clients
(Including the soft phone). Does anyone know what is causing this. I'm
not aware what the sip ping times were earlier, but the audio issues
seemed to have started spontaneously.
Anyone have any idea regarding this?
What codecs are you using? I have noticed that g729, for some reason,
adds a lot of latency to the phone. Running on uLaw, however, I get
times from sip show peers of around 5-14ms.
Steve
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