Enterprise session border controllers(eSBC) are increasingly being packaged as part of a larger sale of unified communications (UC) and contact center solutions, under the Session Initiation Protocol (SIP) trunking connectivity portfolio. In 2014, the eSBC revenue rose to $271 million, a 6 percent gain over 2013, according to Diane Myers, principal analyst for VoIP, UC, and IMS at Infonetics Research. The technology research company foresees the growth in the eSBC market being driven by businesses' use of SIP trunking services, interconnection between disparate systems and support of remote workers and cloud UC services.
According to Infonetics, in the fourth quarter of last year, eSBC revenue reached $73 million, with 2.5 million sessions shipped. The shipment of eSBC is boosted by the lower average cost-per-session compared to traditional VoIP-TDM gateways. Infonetics named AudioCodes, Cisco, Oracle and SonusNetworks as the top four eSBC market share leaders in 2014.
