British Telecommunications PLC's recent agreement on capital participation in Japan Telecom Co. is part of its strategy to form a "family of alliances" that will help it become the most successful carrier in the global market, BT chief executive Sir Peter Bonfield said Wednesday in Tokyo.

"Working with partners is a key to our success," Bonfield told a news conference. "BT does not seek to dominate or control. We have taken minority stakes in most of our alliances.

"We adopt a proactive approach of working with and supporting local partners, including in the technology, marketing and sales and regulatory areas."