Nomorobo, a Mount Sinai-based startup that blocks telemarketing calls, has received an endorsement from telecom giant Time Warner Cable Inc., which announced it would give its phone customers easy access to its third-party robocall-blocking service. Time Warner introduced the option last week for customers to opt into Nomorobo's service with a single click on the telecom's phone management... Nomorobo, a Mount Sinai-based startup that blocks telemarketing calls, has received an endorsement from telecom giant Time Warner Cable Inc., which announced it would give its phone customers easy access to its third-party robocall-blocking service.