Media gateways take on a central role as SBCs in UC scenarios: they act as translators and mediate between the various protocols and services. All current OfficeMaster Gate variants can be used as session border controllers via the SIP "interfaces".
However, ISDN ports are not currently supported by firmware 5.0. If this scenario is relevant for you, please contact pmc[at]ferrari-electronic.de for the latest information about the release process.