Defines SIP session states, such as "registering", "outgoing call", and "in call".
|int||DEREGISTERING||When the unregistration request is sent out.|
|int||INCOMING_CALL||When an INVITE request is received.|
|int||INCOMING_CALL_ANSWERING||When an OK response is sent for the INVITE request received.|
|int||IN_CALL||When a call is established.|
|int||OUTGOING_CALL||When an INVITE request is sent.|
|int||OUTGOING_CALL_CANCELING||When a CANCEL request is sent for the INVITE request sent.|
|int||OUTGOING_CALL_RING_BACK||When a RINGING response is received for the INVITE request sent.|
|int||PINGING||When an OPTIONS request is sent.|
|int||READY_TO_CALL||When session is ready to initiate a call or transaction.|
|int||REGISTERING||When the registration request is sent out.|
Converts the state to string.
When the unregistration request is sent out.
When an INVITE request is received.
When an OK response is sent for the INVITE request received.
When a call is established.
When an INVITE request is sent.
When a CANCEL request is sent for the INVITE request sent.
When a RINGING response is received for the INVITE request sent.
When an OPTIONS request is sent.
When session is ready to initiate a call or transaction.
When the registration request is sent out.