LAHORE – The FIA Cyber Crime Circle on Wednesday arrested two and seized gateway exchanges in Johar Town. FIA officials said.

He said that cases were registered against accused while computers, telephones and other devices were recovered from their possession. The Federal Investigation Agency (FIA) registered cases against accused involved in unauthorized Voice over Internet Protocols (VoIP).

The gateway exchange is a telephone switch that forms a gateway between a national telephone network and one or more international gateway exchanges, providing cross-border connectivity.

The calls were transmitted to Pakistan where illegal gateway exchanges containing mobile SIMs/IMSIs were installed. The calls were converted from VoIP to Global System for Mobiles (GSM) and transmitted to destination telephone numbers. The recipients would assume that the calls were coming from local mobile phone numbers.

In Pakistan, Internet users are supposed to obtain a license from the Pakistan Telecommunication Authority (PTA) for running a gateway exchange. But a large number of people operate gateway exchanges illegally.