TelStop

By Collin Mulliner

Get it here: https://play.google.com/store/apps/details?id=org.mulliner.telstop

Demo shows a page leveraging the tel tag, but writing NFC tags with the following also produces a similar result. http://trusteddefense.net/android/NFC/nfc.html
This is a quick fix for the TEL attacks described here [2].

TelStop publishes a TEL handler and will be invoked on every phone call the originates
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