The benefits of having the Unified Communications Gateway (UCG) are:
- Security assurance.
- The UCG provides a single point of entry in and out of the network for video calls.
- Video endpoints are protected from external unsolicited malicious calls like H323/SIP brute force calls or denial-of-service attack and toll fraud attempts.
- topology hiding means that externals only see information about the public interface of the SBC and not the endpoints.
- Cost savings. There is no need for on premise management of gatekeeper or registrar for video endpoints.
- Improves connectivity. Allows endpoints in internal network to communicate with external endpoints by back to back mapping of call setups and SIP normalisation, if necessary.
- Call reporting. Call detail records are available for troubleshooting and usage reporting.