Service Statistics

…​current number of active activities created by the SIS that are directly related to the service.

…​each time composition evaluation causes a new service instance to be created in the SIS.

…​when the service terminates its association with the call.

gauge

…​total number of activities directly related to the service that the SIS instance has created.

…​each time composition evaluation causes a new service instance to be created in the SIS.

…​never.

delta

…​events specifically targeted at the service, that the SIS instance has attempted to deliver to the service. (Includes IN dialog-control events such as TC_CONTINUE and TC_END.)

…​whenever the SIS attempts to deliver an event to the service.

…​never.

delta

…​messages received by the SIS from the service. (Includes dialog-control events such as TC_CONTINUE and TC_END.)

…​whenever the service sends a request, response, or other message to the SIS.

…​never.

delta

…​service failures (such as no-response timeouts) the SIS instance has experienced while waiting for a response from the service.

…​each time the service does not provide a response to an event for which it is required to do so within the timeout period specified for the service (or the default timeout period if none has been specified).

…​never.

delta

…​service initial request response time.

From the time the SIS instance attempts to deliver the initial request to the service…​ to the time the service sends the SIS its response to the request.

Response time for initial request processing for every composition service invoked by the SIS, when the service does provide a response.