Toolpack and TelcoBridges hardware support the following signalling protocols:
- PSTN
- SS7
- (20+ variants) MTP2, MTP3, SS7/C7 TCAP and ISUP
- SIGTRAN (currently in development)
- ISDN PRI
- (14+ variants), National ISDN-2, Euro ISDN, DMS100, DMS250, 4ESS, 5ESS, JATE/Japan INS-NET1500
- CAS(multiple variants):
- MF-R1, MFC-R2, Loop Start, Ground Start, Wink Start, Robbed-bit signalling
- IP
