Today’s real-time communications (RTC) no longer just consists of voice calls, but now includes video conferencing, instant messaging, desktop sharing, team collaboration, and presence management. Making these different applications work together seamlessly requires a signaling protocol, known as the Session Initiation Protocol (SIP), which is used to establish RTC sessions between parties.
As powerful as SIP
As powerful as SIP is, it isn’t without challenges that include differences in implementation between vendors and the security issues involved when transporting data across the Internet. Session border controllers (SBCs) are designed to control RTC traversing an enterprise or service provider IP network. SBCs also handle all the signaling and media functions, such as interworking and translation required to make SIP work seamlessly.
