Voice over LTE (VoLTE) Retrofit Kit includes: - ETP-520EI Analog Call Station - 4G Voice over LTE (VoLTE) Cellular Gateway with antenna (ETP-CGW-4G-GSM-V2) - 2-year prepaid AT&T SIM card with VoLTE service - 2-year subscription for Cellular Gateway cloud monitoring and email alerting Cellular gateway supports 12VDC input. Please add power supply if 110VAC input is required. NOTE: Does not currently support E911 and cannot dial 911.
