... E1(T1), with its embedded ARM9 CPU and Linux operation system. NC-AD300D is a cost effective, powerful, ... :·Signalling support: SS7, PRI, Q.SIG, R2, V5.2;·Interface Connector: 16 E1(T1), 1 10/100M ... any signalling between SS7, ISDN PRI, Q.SIG, V5.2, R2;·Multi router, inter-office management, Intelligent ... :Figure 1 Signalling Convert Between SS7, ISDN PRI, V5.2, R2, Q.931;Figure 2 Multi-Router ...