Session Border Controllers (SBCs) have seen unprecedented growth over the past five years from the rise of SIP trunking, IP peering, VoIP security issues and other factors related to the growth of IP-based communication services. Although the market is in a bit of a lull right now, increased penetration rate of SIP and Voice-over LTE will create another wave of growth for SBCs over the next five years. Because of this, the market for SBC vendors, or at least vendors claiming to be SBCs, has exploded accordingly.
Are all solutions equal, though? My answer to that is a resounding “no.” I think there are many vendors that claim to be an SBC to try and leverage a hot market or to gain an entry into the space, but they’re not SBCs. From the research I’ve done in this space, here’s my criteria of what makes an SBC.