... to Ethernet 3)ISDN PRI,SS7,V5.2,R2,Q.SIG to SIP 4)PSTN to IP 5)T ... 4E1);2. Complete Signaling (SS7/ISDN PRI/V5.2/Q.SIG/R2/SIP/T.38);3. The best device ... support by NC-MG900:·Signaling support:-SS7 (ITU-T Q.700 series), 24 bits/14 bits PC, ISUP/TUP ... ;-ISDN-PRI (ITU-T Q.931, Q.921);-V5.2 (ITU-T G.964, G. ... ISUP overlap to SIP))-Voice Codec:G.711 U-Law and A-Law, G.711 Appendix 1, G.723.1 and ...