What is MSS (Mobile satellite service)?

A radiocommunication administration between portable earth stations and at least one space station, also among the space stations utilized by this service. Mobile satellite services (MSS) give two-way voice and information interchanges to worldwide clients utilizing terminals and are in remote locations. It can likewise be mounted in a vehicle, with communications kept up with while the vehicle is moving. It can be utilized from any area in India for crisis correspondence. It can communicate and receive frequencies of the terminal in S-Band.