Patton SN4141/2ETH8JO8V/EUI, SmartNode VoIP Gateway, 8FXO, 8 VoIP calls or 4 SIP-SIP Calls (SIP b2b UA) upgradeable (max. 200), Optional SIP-TLS/SRTP; Transcoding (max. 4 calls), 2x Gig Ethernet, external UI power (100–240 VAC)