skype from us to china has delay, echo

We use VoIP over our WAN without any problems at all. One thing that we had done was we purchased point to point T1 lines instead of frame relay, or using the Internet. This gives us guaranteed bandwidth to start out with.

We also use the WAN connection for data, so by setting up a QOS in the Routers for the VoIP protocol (G.711) we were able to prioritize those packets.

How does this apply to Skype?
The packet loss and delay that causes distortion, echoing, and delay in VoIP (G.711) will cause it using Skype's software.

My experience is that echoing can be fixed with echo canceling algorithms, sometimes this comes with the phone (pbx?), or is provided by the carrier. If you have it all you may have to do is adjust the volume while on a conversation, of course this depends on the phone, or software.

Just take a look at the internet traffic report and it answers your question for you...

http://www.internettrafficreport.com/main.htm

As an example, North America is sitting at an index of 90 while Asia is sitting at 57 (At the time of this writing.)

um, is skype voice over ip? sorry to be an idiot here. my user gets on a headset with a microphone to use it. we pretty small potatoes over here. i was wondering how much home user dsl router and bandwidth might have to do with it. so you are saying, the delay is dropped packets? would you expect a consistent delay of same amount (about 3 seconds i am told)

i guess my dsl is fast enuf. it is just slow internet then? that kinda makes sense to me. i am asking they try this from another location here. they think it is because they are using a bluetooth ap on the china end. sigh. no wonder i can't get raise...

Besides the Bluetooth there is another issue here that everyone seems to have failed to consider.

It's China they have some very restrictive practices in place and filter everything coming in or going out.

Besides your actual connection speed there will be a lag due to the filtering process and quite likely a bounce back from the filtering point that may sound like an echo.

Have you tried any of the other SIP approved VoIP packages that are available with the newer technology supported they may limit this problem slightly my first choice would be Gizmo but there are numerous other products that support this new standard which currently Skype doesn't.

Col

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