any experienced user please guide us newbies to tune echo training intelligently.
echocancel can have values of 32,64,128,256, and echotraining=400 or 800
my test setup: SoftFone --- * --- PSTN
from the default values of echocancel=128 and training=400, i observed that if SoftFone is on the same LAN with * there is no problem with the echo for me.
but when SoftFone is on the internet then echo reappears.
Questions: are there any rule of thumb like when the latency increases, how do i supposed to set echocancel from default of 128? is it higher 256? or go down lower to 64,32? the same question with echotraining=400/800?
thanks,
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