Internet via either integrated LTE or DSL modem LTE broadband (LTE-enabled Mini SIM card required) Multiband support for LTE (4G) connection, IP-based, analogue or ISDN landline 4 x 4 WLAN AC + N with Multi-User MIMO, WLAN AC with up to 1733 Mbps (5 GHz) and WLAN N with up to 800 Mb/s (2.4 GHz), 1 x USB 3.0 for storage or printer, DECT base station for up to 6 wireless handsets, ISDN-S0 bus for ISDN telephones and ISDN telephone systems 2 x a/b port for analogue phone, answering machine or fax