said by Stewart:In addition to or instead of the complex DND scheme, consider setting up a Localphone account. Once configured, your family contacts can dial a local US number that will ring your Japan mobile. Though it's fairly expensive at $0.14/min., when you are home (or anywhere you have broadband), you can hang up within the first minute and call them back from your Phonepower line. If any telemarketers call the access number, their caller ID will not be recognized, so you won't be disturbed (or charged).
Or he could get another Phonepower virtual number @ 5.00 a month they wont break the bank
RockDude57 the OP mentioned he still wants to be able to hear emergency calls from friends\family. I know what you are referring to aka quiet time but it is either an all or nothing setting.