Quality of Internet Connection

[Pierre]

I have been having problems lately with my phone cutting out during conversations, I suspected internet problems and not a VOIP problems. I am using a high speed wireless connection, 12MBS down and 7MBS up, speed is not a problem.

I contacted both my ISP and “Visualware”, a company that can analyse quality of internet connections. They had me running this test: http://mcsiad.visualware.com/vptest

I sent them the results and they confirmed a high “Jitter” rate in my Internet connection, especially downstream. They claim this is likely why I am not having a good solid connection that can support VOIP without problems. Apparently, this is fairly common using VOIP with wireless Internet.

My ISP claims I should be able to tweak the settings on my ATA box to help overcome this “jitter”.

I am using a Grandstream 286 ATA box, does anyone know of any setting in my ATA that I could tweak to help minimising the “jitter” in my Internet connection?

Thanks,
Pierre

[dibsmft]

The GS 286 does not have any jitter settings but instead claims to have "Adaptive jitter buffer control". The GS 286
that I have works very well on my DSL connection (much slower that your connection) with most voip providers. One thint that you can
check is the voice codec that you are using G729 and put it first in the 286 configuration.

[Pierre]

The GS 286 does not have any jitter settings but instead claims to have "Adaptive jitter buffer control". The GS 286
that I have works very well on my DSL connection (much slower that your connection) with most voip providers. One thint that you can
check is the voice codec that you are using G729 and put it first in the 286 configuration.

This is exactly what the tech from Visualware recommended, here is what he said:
"Set your choice 1 codec to G729, it may improve things, G729 is a low quality codec but it is the least demanding on the network, it’s worth a try…."

Thanks, I will give it a try.
Pierre