SN4741/128JS128VSP/RJ11-21/R48

SmartNode VoIP Gateway, 128 FXS on RJ11&6xRJ21-50pin, K.21 basic surge protection, 128 VoIP Calls, upgradeable to eSBC (max. 200 SIP calls), Optional SIP-TLS/SRTP, 2x Gig Ethernet, 1x USB, 1x Console, Redundant 20-59V DC power