B2 is a module with 2 BRI ports to terminate two BRI lines. It can be used in MyPBX SOHO, MyPBX Standard, MyPBX U100, MyPBX U200, MyPBX U5XX, and S-Series VoIP PBX.
BRI Parameters:
Number of Ports: 2 x NT/TE
BRI ISDN details: S interface, Signaling EDSS1 (Q.931