Robots already are starting to displace some humans from low-end tasks such as monitoring the performance of digital networks, according to Benedict Hernandez, an executive at the IT and Business Process Association of the Philippines, the industry trade group. And, while robots aren’t yet smart enough to replace the human phone operators who do jobs like fielding calls from bank clients or helping people reset their modems, they will be within five years or so, according to Mr. Hernandez and other outsourcing specialists.