1)Signalling gateway, converter any signaling between SS7, ISDN PRI, Q.SIG, V5.2. R2; 2)Clocking source: E1, internal; Description: NC-AD300D is ... , Q.SIG, R2, V5.2 * Interface Connector: 16 E1 (8 spans), 10/100M network 1 port, RS232 console 1 port * 16 SS7 links ... between ITUT C7, ISDN PRI, ETSI ISDN, Q.SIG, V5.2, R2 * Multi router, inter-office management, Intelligent router distribute and ...