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MS vapi deafault voip config

   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!