The Silence Suppression Ratio, measured in percentages (1%). 0 = No Suppression. In case comfort noise is rapidly changed, it may cause the silence to be heard like a dead line instead of hearing the comfort noise. This parameter enables improvement of comfort noise generation, at the expense of less optimization. In case an invalid value is set, the Agent should accept such a request by setting it to the nearest LOWER valid value. For example: - Valid values are 0, 50, 90 and 98 - Attribute is set to 89 - Agent should set the attribute to 50 .