SIP User Features

Accept SIP Feature — Verifies the triggering event is a SIP INVITE and initializes a SIP session.

B2BUA Subscription Activity Guard Feature — Shuts down subscriptions that don’t end cleanly.

Call Parties Address Determination Feature — Attempts to extract the called and calling parties addresses from the INVITE and set the ‘CallingPartyAddress’ and ‘CalledPartyAddress’ session state fields.

Determine Call Type Feature — Attempts to identify the call’s type: one of MobileOriginating, MobileTerminating, or MobileForwarded, which is stored in the CallType session state variable for future features.

Determine Chargeable Leg Feature — Sets the chargeable leg based on the call type

Determine If Roaming Feature — Sets the call’s Roaming Indicator, which is stored in a session state variable for future features.

Determine Registration Status Feature — Attempts to identify the user’s registration state as one of ‘Registered’ or ‘Unregistered’, which is then stored in the SipRegistrationStatus session state variable for future features.

Determine Service Type Feature — Classifies the call’s service Type, which is stored in a session state variable for future features.

End Mid Session Feature — Used to notify the Sentinel core to end the call.

End Session Feature — An initial trigger feature to notify the Sentinel core to end the call. Supports ‘sip_trigger’, ‘http_trigger’ and ‘sipcall’ session types.

Error Code Announcement Feature — This feature optionally plays an announcement based on the response status when an INVITE error response is being forwarded to the calling party during call setup.

Reauthorize Credit Feature — Used to notify the sentinel core to reauthorize credit post initial credit check.

Send Failure End Session Feature — Used to notify the sentinel core to end session on a send message instruction failure.

SIP Determine Network Operator Feature — Sets the Network Operator element of the Sentinel selection key, based on the value returned by the DetermineNetworkOperator function

SIP Mid Session Play Announcement Feature — Plays an announcement to the configured party during mid session.

SIP Normalization Feature — Normalizes the request-URI and other select address headers in the received INVITE request.

SIP Play Announcement Feature — Plays an announcement to the calling party during call establishment.

Sip Set Language Feature — Sets the language used by the announcement features

SIP Prefix and Suffix Analysis Feature — Performs prefix and suffix digit analysis on the request-URI of the received INVITE request.

Sip Proxy and Do Not Record Route Feature — Proxies the incoming SIP session.

SIP Short Code Feature — A pre-credit check feature that performs number translation of short-codes in the request-URI of the received INVITE request.

SIP Subscriber Determination Feature — Inspects the SIP INVITE to determine the subscriber address for this session and set the Subscriber session state field.

SIP Third Party HTTP Trigger Feature — Creates the A and B party legs with the INVITE messages based on the parameters from the received HTTP request.

SIP Third Party Call Setup Feature — Manages third party call setup and SDP negotiation.

SIP Third Party Charging Feature — Setup SCUR charging instance for third party call.

Subscription Expiry Feature — Used to manage expiry timers for active subscriptions.

Unconditional Reject Session Feature — Unconditionally rejects a session with SIP response of SC_FORBIDDEN.

Vertical Service Code Feature — This feature detects Vertical Service Codes in the dialled digit string, and modifies the session as required to give effect to them.