reasons for echo on ip telephones

[phoneguy610]

i have found countless issues that have caused echo. anywhere from cabling issues to bandwith issues to the handset. I figured it would be a useful thread to list all the causes of echo that you guys have found.

 

[Sympology]

Latency in network.
To much sidetone.



Robert Wilensky:
We've all heard that a million monkeys banging on a million typewriters will eventually reproduce the entire works of Shakespeare. Now, thanks to the Internet, we know this is not true.

http://alvechurchlounge.org.uk

 

[Yorkie9]

Think you need to look at your network very closely, I assume that you have applied QOS to all network devices which is a mixture of COS and TOS

 

[doktor]

QoS should be implemented in all eqiuptment fraom the IP phone to the PBX - all switches etc. Lack of QoS - is a missing link - and will give "non-crystal clear voice".

///doktor

http://www.kandu.dk/spg153996.aspx