(Telecompaper) Brazilian operator Oi has taken a further step in restructuring its debt by entering into talks with a group of bondholders. The operator said it signed a non-disclosure agreement with Moelis & Company, an advisor acting on behalf of an ad hoc group of holders of the bonds issued by Oi and certain of its affiliated companies. Oi said the agreement is an initial step toward "productive and expeditious discussions regarding the terms of a potential restructuring". According to previous announcements, Oi retained PJT Partners as financial advisor to assist in evaluating financial and strategic alternatives to optimize its liquidity and debt profile, and it has engaged Barbosa Mussnich Aragao and White & Case as its legal advisors.