KDD began full-fledged domestic calling services today, offering inexpensive connections to anywhere in Japan for those who dial 001 before placing calls from NTT subscriber telephones.

The service number is the same as that used when making international calls, and the first single access number for both international and domestic connections.

As with its international services, KDD will charge customers every six seconds, so customers pay for “only what they have used,” the company said. Other domestic carriers normally calculate call charges in units of 9 yen or 10 yen, and do not refund money for unused time.

When placing calls more than 20 km away, KDD’s rates are cheaper than those offered by NTT, KDD officials said. KDD has been providing domestic calling services to its corporate customers since last July, following a law revision that enabled KDD to enter domestic services.

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