VAS & echo cancellation

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Hi all!

I have a problem with enabling echo cancellation on symbian with VAS.
I have modified the gui test application, and enabled echo cancellation,
with these lines.

//med_cfg.ec_tail_len = 0;
    med_cfg.ec_options = 2;

The ec is ok with the APS sound device, but with VAS the
IsStarted() method of the sound device always returns with timeout. (Here I also tried to increase the pre-defined
VAS_WAIT_START = 2000 value, but without success)
And after the first unsuccessful initialization of the sound device with 8000Hz
pjsip tries to init it with 44100Hz. The VAS sound device asserts, because it does not supports
this  frequency.( this assert is at line 1522 in symb_vas_dec.cpp )
But if I switch of the ec, it works.

Do you know what could be the problem?

Thank You,
Gabor
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