The host address of the destination.

The port address of the destination.

The name of the device receiving the event.

The name of the event(s) we are being notified about. If the NOTIFY SIP message contains more than a single event, this will be the first event specified. To access al the events, the application should inspect the raw SIP NOTIFY message using the pSipMsgStr member.

Depending on the sender of this event, the sender may chose to supply this additional “user specified” event parameter string. If the NOTIFY SIP message contains more than a single event, this will be the first event parameter list specified. To access al the events and parameter lists, the application should inspect the raw SIP NOTIFY message using the pSipMsgStr member.

The type of NOTIFY SIP message being received.

The raw received SIP NOTIFY message.

The host address of the sender.

The port address of the sender.

The name of the device sending the event.

Used only when receiving unsolicited NOTIFY requests. Application software can set this value to a valid SIP response code. If the applications wants to inform the sender that the NOTIFY was accepted, it should be set to 200. If an error response is desired, it should be set in the range of 400-699 depending on the specific SIP error response desired. Generally a 400 (Invalid Request) error response is acceptable.