[asterisk-users] TCP port, VPN and resolving the cutting voice problem

[Steve Howes]

On 30 Nov 2010, at 09:28, bilal ghayyad wrote:
> If I ran IAX in TCP port, and in case my network was having a lot of users doing browse on the internet and downloading, so in that case and if the IAX used TCP port, so the voice will be better than using UDP (because in TCP the lost packets will be resend while in TCP it will not which will cause the voice to be cutting)?

The re-sending would introduce massive latency and jitter. That's why UDP is used. In real-time voice, by the time the packet is 'missed' it's too late to retransmit it.

S