Incoming SIP Route Settings when WebRTC is Used in Client/Gateway

When setting up incoming SIP routes (or trunks) you may limit access to the routes (or trunk) by using incoming firewalls with TLS or tunneling. You can, and must for security reasons, set up rules for authentication on the trunk interface by using digest credentials (controlled by "401 Unauthorized" or "407 Proxy Authentication Required"). See Operational Directions Route Data for details.