In Session Manager, endpoints display an icon that indicates whether a call is secure or not. The call security indication is only for point to point SIP calls. The icon is similar to the icon displayed by web browsers when visiting a secured web site.
A typical two-party call between enterprise SIP endpoints routes through several SIP elements, specifically Session Manager, Communication Manager, and Session Border Controller. All of these elements can impact the end-to-end security of the call.
A SIP entity marked secured is one that does not expose the signaling and media streams to unauthorized monitoring or modification. A call is considered secure if all the signaling hops between the two entities (for example, TLS) and all media streams are secure (for example, SRTP). Any call crossing an entity that is not administered as securable will not be considered a secure call even if the entity meets the rest of the security constraints.
The Session Manager administrator has the option to mark a SIP entity as not secure if the entity is a third party entity or an older version.
Note:
When you administer the SIP entities using System Manager, mark the following Avaya Aura® elements as secure. To mark the elements as secure, click the Enable End to End Secure Call Indication check box on the Session Manager Administration page to turn the feature on globally and then mark each element on the Sip Entity page.
If you mark any other element that is not listed here as secured, the End-to-End Secure Call Indication feature might not give correct indication about a call security.
