Communication devices used by CommuniGate Pro users should register themselves before they can receive Requests from other entities.
Registration Requests require user authentication.
To configure the Registrar Service options, open the Real-Time pages in the WebAdmin Settings realm, and select the Signals page.
Registration: Minimal: Use this option to specify the minimal Registration expiration time period accepted. If a Registration Request contains a shorter expiration time, the Request is rejected, and the Response sent specifies this minimal accepted time. The entity (usually - a SIP device) can resend the Registration Request with an adjusted expiration time.
Registration: Default: This option value is used when a Registration Request does not specify a Registration expiration time.
Registration: Maximal: Use this option to specify the maximal Registration expiration time period accepted. If a Registration Request contains a longer expiration time period, the period is shorten to the specified value.
Registration: Random delta: If this option is set to a non-zero value X, the requested Registration expiration time period is decreased by a random value, from 0 to X. Large sites can use this feature to soften "registration storms", when a large number of devices starts to register at the same time (after a network failure or a maintenance window). The requested expiration time period is decreased only if it is larger than 2*X and larger than Minimal+X.
Note: the Registrar component supports the SIP gruu (Globally Routable User Agent (UA) URIs) extensions.
Note: the Clients that use for registration domain names starting with srtp. or dtls. prefixes are marked as ones expecting secure media offers in incoming calls. Alternatively, if Account Detail is enabled on the server and authentication name during registration contained as detail string srtp or dtls, then the Client will also be offered secure media on incoming calls.