The IXGW-TGW is a mobile app and cellular gateway adaptor for the IX. IXG Series IP video intercom. Up to 99 gateway adaptors are allowed per system. This adaptor allows calls to reach cloud-based mobile apps and phone numbers, giving users the ability to speak to visitors remotely and unlock the door. Once activated, the included SIM card provides an LTE connection. The LTE connection allows for a single phone number to be called per tenant, and can be used as the primary network connection or as a backup failsafe. The IXG mobile app is compatible with iOS and Android mobile devices. Up to 8 apps can be registered per tenant station.