DDI Pocket Inc., an affiliate of KDDI Corp., has basically agreed to lease out its personal handy-phone system communications network to a Tokyo-based startup telecommunications company, industry sources said Monday.

The deal will allow Japan Communications Inc., an independent telecom firm established in 1996, to provide PHS services without a huge investment in infrastructure, the sources said.

The firm plans to focus on low-cost services for corporations, they said.

For DDI Pocket, the deal will utilize its idle facilities.

If finalized, the agreement will be the first case in Japan for a telecom carrier to open its mobile communications network to a company without such a network.