India, Feb. 19 -- Three suspects, including two Tibetan refugees, were arrested from Delhi's Majnu Ka Tilla for allegedly smuggling and installing makeshift call rerouting gateway devices that converted internet calls into domestic calls to aid cybercrime gangs operating from abroad, police said on Wednesday.

The Voice over Internet Protocol (VoIP) - Global System for Mobile Communication (GSM) gateway, comprised of multiple phone motherboards spliced together as a grey-route termination setup, functioned as illegal virtual high-frequency telephone exchanges, routing voice over internet protocol (VoIP) into domestic GSM calls to facilitate digital arrest, gaming, and stock market frauds, investigators said.

Police stated the trio was in...