Telecom service providers around the world are reinventing their businesses by adopting next-generation technologies. At the same time, requirements for ongoing maintenance and operations of legacy networks, investment protection, and customer satisfaction remain a top priority. Yet as the cost of maintaining those networks climbs, communications companies are increasingly under pressure to make maintenance more financially manageable. Enter multi-vendor maintenance: an alternative maintenance support service model that includes a single point of contact to radically streamline legacy network support and bring costs under control.