Patton SN5571 E1/T1 PRI VoIP Gateway – 1x PRI, 30 Channels for Advanced SIP Trunking AVB (SN5571/2E30VRHPAVB/EUI)

SmartNode E-SBC, 2 E1/T1 PRI, 30 VoIP Calls (not upgradeable) or 15 SIP-SIP Calls (SIP b2b UA) upgradeable (max. 200), SIP-TLS, SRTP, 16 Transcoded Calls, High Precision 5ppm Clock, Fallback Relay, 2x Gig Ethernet, VDSL/ADSL-Annex B/J, 1x USB port, external UI power