t30_set_ecm_capability(&mc->fax.t30_state, use_ecm);
        t30_set_supported_image_sizes(&mc->fax.t30_state, T30_SUPPORT_US_LETTER_LENGTH | T30_SUPPORT_US_LEGAL_LENGTH | T30_SUPPORT_UNLIMITED_LENGTH
                                                        | T30_SUPPORT_215MM_WIDTH | T30_SUPPORT_255MM_WIDTH | T30_SUPPORT_303MM_WIDTH);
        t30_set_supported_resolutions(&mc->fax.t30_state, T30_SUPPORT_STANDARD_RESOLUTION | T30_SUPPORT_FINE_RESOLUTION | T30_SUPPORT_SUPERFINE_RESOLUTION
                                                        | T30_SUPPORT_R8_RESOLUTION | T30_SUPPORT_R16_RESOLUTION);
        if (use_ecm)
            t30_set_supported_compressions(&mc->fax.t30_state, T30_SUPPORT_T4_1D_COMPRESSION | T30_SUPPORT_T4_2D_COMPRESSION | T30_SUPPORT_T6_COMPRESSION);