Yes i have changed I2S to slave mode, i was called wiced_hal_set_pcm_config(&pcm_config); and
wiced_hal_pcm_config_t pcm_config =
.mode = WICED_HAL_I2S_MODE,
.role = WICED_HAL_I2SPCM_SLAVE///
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According to comments in hci_control_ag.c, can you try setting up SCO link using API wiced_bt_sco_setup_voice_path()?
The configuration you have mentioned seems correct.
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