Telecom APIs allow carriers to disseminate a wealth of internal information or resources to third parties on an asymmetric basis as the network operators typically do not provides services to the end-users. Instead, network operators offer API for DaaS in an arms-length manner for B2B to Business (B2B2B) and B2B to Consumers (B2B2C) services.
Detailed report at: http://www.reportsandintelligence.com/telecom-network-api-place-strategy-ecosystem-players-and-forecasts-2014-2019-market