SN4131/2BIS4VHP/EUI

SmartNode VoIP GW, 2 BRI TE/NT, 4 VoIP Calls, or 4 SIP-SIP calls (SIP b2b UA) upgradeable (max. 200), Optional SIP-TLS, SRTP , 1x Gig Ethernet, 1x USB port, High Precision 5ppm Clock, external UI power (100–240 VAC) NA/EU