Satellite phones require line of sight to the satellite to connect. They do not have enough transmit power to go through walls etc. 

We suggest a Docking Station with an RJ11 port, this enables you to connect a cordless phone to the docking station and roam freely indoors. 

This type of installation requires an antenna mounted at the highest point possible on the roof. We would need to know what length cable to provide as well, the proper size is needed to ensure signal propagation, this is a vital aspect of the install. 

You can not call 911 directly on the Inmarsat phone. The unit does have an 'Emergency SOS' button that is pre-programmable. You can set it up to call someone, send an alert via text or email message and the prime usage is to register yourself with  GEOS, a global rescue service and they will get the message and immediately alert authorities. The 911 Service is provided by a private company who will then alert authorities in your area. This is the US and Canada only. 

This servie applies to Iridium handsets 9505, 9505A, 9575, 9575N, 9555 & 9555N as well.