“The increasing use by terror group Lashkar-e-Taiba of Voice over Internet Protocol (VoIP) for communication, and its impenetrability, is proving frustrating for Indian intelligence. In fact, Lashkar supreme commander of operations, Zaki-ur Rehman Lakhvi, who is in a Rawalpindi jail, has been networking using a private VoIP on his smart phone with Lashkar cadres.”
Source: Lashkar’s own Skype frazzles Indian intelligence – Times Of India