... reliable and stable signaling converter.Specification:·Signalling support: SS7, PRI, Q.SIG, R2, V5.2;·Interface Connector: 16 E1(T1), 1 ... SS7, ISDN PRI, V5.2, R2, Q.931;Figure 2 Multi-Router ConnectionFigure 3 Call Back SystemFigure 4 Signaling CollectFigure 5 Recording ... System Signalling converter with SS7, ISDN PRI, R2, V5.2, Q.SIG.