What can I do about Latency?

[richard]

Hi

I have a question on the cause of latency and also would like to know if there is anything I can do with it.

Basically the problem is that when I use Voxalot I often get alot of latency in the call. Sometimes 3 to 4 seconds of delay :-( When I change to using vBuzzer or VoipBuster directly the latency is not noticable. Usually less than one second. I don't remember ever having a problem with Latency on vBuzzer or VoipBuster but quite frequently on Voxlot.

Can anyone tell me what factors cause latency and if there is anything I can do about it. Also, where this is an issue with Voxalot and not the other two ITSP I use.

My environement is:

Sipura SPA3000 & SPA 841
5Mbps Internet Connection
US Robotics Router

I connect via us.voxalot.com and I use stun stun01.sipphone.com:3478.

Any help would be greatly appreciated.


Richard