This SDK slick and DSP config not integrated,so when modify
slic's pcmencode from 1 to 0 , the FXS voice will have noise.
To sync these setting:
for little endian CPU :
find comcerto-voip-types_le.h on VAPI/common/comcerto_headers
#define VOIP_VCEOPT_COMPANDER_ALAW 0x0
#define VOIP_VCEOPT_COMPANDER_MULAW 0x1
#define VOIP_VCEOPT_COMPANDER_DEFAULT 0x0
chnage the VOIP_VCEOPT_COMPANDER_DEFAULT to match slic pcmencode setting!