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.
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.
Quality Management System Supplier hereby undertakes, warrants and confirms, and will ensue same for its subcontractors, to remain certified in accordance with ISO 9001 standard or equivalent. At any time during the term of this Agreement, the Supplier shall, if so instructed by ISR, provide evidence of such certifications. In any event, Supplier must notify ISR, in writing, in the event said certification is suspended and/or canceled and/or not continued.