14215700-IG, Edition 15.0
May 2020, Original document
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of the connection.
Spectralink DECT Handset Handling of Acoustic Echo
Under the Settings Menu in the Spectralink DECT Handset, under Advanced > Echo canceller, you
can define the echo canceller to be either off or on.
Note:
Only Spectralink DECT Handset 7202/7212, 7502, 7522/7532, 7622/7642 and
7722/7742 with firmware PCS 19K_ or newer support echo cancelling.
For more information about entering the handset menu, see the Handset User Guides.
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Echo canceller setting off
With the echo canceller setting off in the handset, it is possible to activate or deactivate noisy
environment. If noisy environment is deactivated, the soft talk shift function is enabled, which
can give some bad performance in noisy environment and by double talk.
If noisy environment setting is activated, the soft talk shift function is disabled, which means
that the sound on the loudspeaker is stable in that end of the connection, but echo can be
received in the other end of the connection.
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Echo canceller setting on
With the echo canceller setting on, it is possible to make understandable telephone calls to
and from noisy environments, and even double talk can be handled.
If echo cancellation is enabled, then Noisy environment setting is ignored on ear speaker and
wired headset. When echo cancellation is enabled, there are 2 additional volume steps on the
ear speaker. If turning speakerphone on, the echo canceller setting is ignored. When turning
speakerphone off, the echo canceller setting becomes valid again.
Note:
Enabling echo cancellation does not prevent you from hearing echo, but helps pre-
venting the person you are talking with, from hearing an echo.
Spectralink IP-DECT Server 200/400/6500 and Virtual IP-DECT Server One Installation and Configuration Guide
