1) Social networking service
Found on
https://www.crosswordclues.com/clue/upptalk
Upptalk (formerly known as Yuilop) is a proprietary voice-over-IP service and software application that provides mobile phone numbers in the cloud and allows users to call or text any phone for free whether or not the device receiving the calls and texts has the Yuilop application. Yuilop provided phone numbers can be accessed across any device on...
Found on
http://en.wikipedia.org/wiki/Upptalk
No exact match found.
