SN4131/4BIS8VHP/EUI

SmartNode VoIP GW, 4 BRI TE/NT, 8 VoIP Calls, or 4 SIP-SIP calls (SIP b2b UA)upgradeable (max. 192), Optional SIP-TLS, SRTP, 1x Gig Ethernet, High Precision Clock 5ppm, 1x USB port, external power (100–240 VAC) NA/EU