LUSTER 20000-VAD-IP-E1-1/2/4-4 SERIES (Managed) (one-the Four at Directions) video + (a-Four at Directions) data Audio + Ethernet + the E1 PDH
LUSTER 20000-VAD-IP-TEL-E1-1/2/4-4 SERIES (Managed) (one-the Four at Directions) two-way video + (a-Four at Directions) data, audio + phone + two independent Ethernet + E1 PDH
LUSTER 20000-VAD-IP-E1-11/22/44 SERIES (Managed) (one-the Four at Directions) + (a-Four at Directions) data, two-way video, audio + Ethernet + the E1 PDH
LUSTER 20000-VAD-IP-TEL-E1-11/22/44 SERIES (Managed) (one-the Four at Directions) + (a-Four at Directions) data, two-way video, audio + Ethernet + the E1 PDH