Sip SIP Message

It is the type of message through which CUCM communicates with VRS. It  It can either be a Request or a Response. It can either have content or notan empty message.

Call

Call determines a complete object containing all sessions in it. The sessions can be multiple in case of A call aggregates all sessions of a call. An actual call may have several sessions due to hold/resume or Transfer transfer/conference scenarios. A call object contains all sessions of a call.

Session

Session A session determines a single recording containing both parties streams/legsjoining all voice streams of all participants.

Session _LegsLeg

A Session legs determine Leg is the voice stream of a single person in any callone participant in the session. A Normal call has minimum of 2 session has at least two session_legs for both parties stream.

Calling Number

This is the Endend-user/ Party party who dialed initiated the SIP call to anyone.

Called Number

This is the Endend-user/ Party party who received the incoming call.

Force TerminationFORCE_TERMINATION 

It is a flag which represents that a recording for this call is corrupted or incomplete. This recording might be empty or incomplete. 

Zombie Timer

If the call is terminated for equal or more then this interval we mark it Terminated.

Thread Timer

This is the time interval after which our internal process check all the terminated calls and send them to the Mixer.

Call_Timeout

If no RTP packets received from the socket for this amount of time we mark it “Force Terminated”

Topic

Kafka Topic is basically a queue by which we send call information from recorder to mixer