[cisco-voip] Can over subscription cause echo?

[Scott Voll]

I have a remote site that is complaining of echo progressively getting worse
on calls.  All Calls, IP Phone to IP Phone or IP Phone to PSTN.  Gets so bad
they have to hang up.

I'm looking at the connection between the remote site and the central site
and it's being fulling used.

Bandwidth is hard to this location as it's two Telco's running one DS3 ATM
to the other Telco frame-relay T1 capped at ~800 - 900 k.  I'm doing the
best I can with QoS but is it a possibllity this is causing the echo?

TIA

Scott
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