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Reply To: Increase in Interferance HOs with DTX



It seems that the ETSI (which is in the 3GPP to define the standard of GSM) has made a mistake : the algorithm used in DTX is not compatible with the AMR. The voice quality is seriously degraded when AMR + DTX are used together (but not only in alcatel ! it is an ETSI mistake)

Please confirm that with Alcatel first ! Confirm that the problem still exists in your release, and if it can be fixed with a patch.

Haven’t you done a drive-test to hear it by yourself ? I’m sure you would really hear the proble. It is real and not just due to bad measurements…

Let me know 🙂