Charter has seen call volume to Japan decline from its peak on Friday, the day the earthquake and tsunami hit the country, although volume remains higher than normal.
Charter Phone customers will be credited for any calls placed to Japan from March 11-14. Calls made from March 14 through April 30 will be not appear on customers' monthly statements. Free calls can be placed to landline or mobile phones. Calls to operators or directory-assisted calls will be charged at the usual rate.