SIGNALS IN SMARTPHONES
A limited number of phones have external antenna ports. Patch leads are available for a direct connection to these ports. To get around this cradle style patch leads are
available that transfer the signal using induction
The MiFi is basically a compact mobile hotspot for up to 10 devices and provides a Wi-Fi signal in a small area, to share mobile internet amongst multiple devices.
Multiple devices can be connected to the router using Wi-Fi or an Ethernet cable for business or residential use, these are a wireless router that also connects to the mobile network.