VoIP and Echo
Source: asteriskblog.com
Nowadays echo seems to be troubling my VoIP. Back in my childhood days, yodeling and echoes were an instant form of amusement for me, but now it’s a bit frustrating. Now what “echo” am I talking about? Well it’s that really annoying effect that you hear on a call hearing your own voice like a nagging conscience well it actually varies depending what’s causing the echo.
Echo on voice networks actually there’s 2 of them,a hybrid echo and an acoustic echo. Hybrid echo is a linear electrical signal reflection that occurs at the 4-wire to 2-wire conversion point in a PSTN network. Hybrid echo can enter the VoIP network wherever there is a connection between VoIP and PSTN networks. Acoustic echo is non-linear and is caused by poor acoustic isolation between the speaker and the microphone of a user’s device. well it’s the handset, headset, speakerphone. It can invade from any source.Those forms of echo are more noticeable and annoying to us the addition of the delay of the IP network. The delay is so frustrating you would likely abandon the call.
