On 7 Feb 2007, at 16:33, Jim Duda wrote:

Tim,

What sort of 'poor' quality are we talking about - when folks complain what words do they use?
On the other end, folks complain that the voice drops out. Words are lost. It's very frustrating to communicate.

Which codec(s) are you using?
ULAW

How many channels do you want to use at once ?
1 is fine.  This is basic home use.

What is the round-trip time between you and the teliax server ?
The ping responses are on the order of 15mS.
I ran mtr, teliax is 10 hops away, and I don't see any packet loss.
I was just on the phone with my house, and the call sounded just fine at this time (problems come and go).

This is the dump of iax2 show netstats while the call was up.

-------- LOCAL --------------------- -------- REMOTE -------------------- Channel RTT Jit Del Lost % Drop OOO Kpkts Jit Del Lost % Drop OOO Kpkts IAX2/teliax-2 37 -1 0 -1 -1 0 -1 5 0 40 0 0 0 0 0

Do you have the jitterbuffer on or off ?
I don't believe so. I didn't turn jitter on. I believe jitter is off by default.

Thanks,

That's really weird - everything you say makes it look like it would be a great setup,
except that it isn't :-(

The only thing I can advise now is to get a packet capture (etherreal) of the IAX stream for a
bad call and see if the packet timestamps tell us anything.



Tim Panton

www.mexuar.net
www.westhawk.co.uk/



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