SmartNode VoIP Gateway, 24 FXS on RJ11, K.21 basic surge protection, 24 VoIP Calls, upgradeable to eSBC (max. 200 SIP calls), Optional SIP-TLS/SRTP, Optional Transcoding (max. 16 calls), 2x Gig Ethernet, 1x USB, 1x Console, Single External UI power (100–240 VAC), Redundant Power Supply (Optional)
