Usage Measurement Usage measurement for calls shall begin when answer supervision or equivalent Signaling System 7 (SS7) message is received from the terminating office and shall end at the time of call disconnect by the calling or called subscriber, whichever occurs first.
WELDING TESTS 31.1 On hire welders must possess the qualifications and class of welding ticket specified by the Employer. It will be at the Employer's discretion whether a welder who does not possess the qualifications and class of welding ticket specified will be hired.
Measuring EPP parameters Every 5 minutes, EPP probes will select one “IP address” of the EPP servers of the TLD being monitored and make an “EPP test”; every time they should alternate between the 3 different types of commands and between the commands inside each category. If an “EPP test” result is undefined/unanswered, the EPP service will be considered as unavailable from that probe until it is time to make a new test.
Measuring DNS parameters Every minute, every DNS probe will make an UDP or TCP “DNS test” to each of the public-‐DNS registered “IP addresses” of the name servers of the domain name being monitored. If a “DNS test” result is undefined/unanswered, the tested IP will be considered unavailable from that probe until it is time to make a new test.