... different models with 1*E1/T1, 2*E1/T1, 4*E1/T1, and 8*E1/T1. It supports SIP-T/ ... VoIP operator. Features and Benefits: Multiple E1 or T1 models optional VJ1000 series NGN trunk gateway has ... four available models: 1*E1/T1, 2*E1/T1, 4*E1/T1, 8*E1/T1. Flexible dial plan & Number ... 9 years history, more than 20 thousand E1/T1 lines delivered. Total protocols supporting VJ1000 series gateway ...