Provider Reference Infrastructure Sharing Offer ______________________________________________________________________ Both Parties are required to provide a point of contact for reporting and handling of Faults 24-hours a day, every day of the year. The designated Point of Contacts must ensure that they may be contacted by telephone. Designated Points of Contact will be listed in the Operations & Maintenance Manual. A fault will be deemed to be „started‟ when one of the Parties accepts ownership of the fault. When the fault is reported by the Infrastructure Seeker Provider shall not delay its acceptance of ownership of the fault. A fault will be deemed to be „ended‟ when Provider informs the Infrastructure Seeker that the fault has been repaired. Information on the progress of a fault rectification will be given on a case by case basis as agreed between the Parties. Registration of the fault, analysis of the fault and any necessary dispatching of technicians will start as soon as possible after the fault has been reported and responsibility has been accepted. The Infrastructure Seeker will be asked to confirm acceptance of the fault clearance and if considered necessary to perform a re-test. The fault will be considered closed when the Infrastructure Seeker either accepts the fault clearance information or confirms a successful re-test (e.g. Service has been restored). If confirmation of a successful re-test or a rejection is not received Provider will close the fault. If both Parties cannot agree that the fault is cleared, the fault shall not be closed until escalation and/or investigation has been satisfactorily carried out, using appropriate mechanisms previously agreed between both Parties (see paragraph 4 below). 3.2. Specific Provisions applicable to Dark Fiber Service The target available time for the Dark Fibers provided by Infrastructure Provider to the Infrastructure Seeker is equal to 99.9% of the time in a calendar year. Availability is calculated by dividing the measured available time by the total time in a calendar year, expressed as a percentage. The measured available time is the total time in a calendar year less the measured unavailable time. Subject to any other terms in this SLA, the Dark Fibers are deemed to be unavailable to the Infrastructure Seeker when the Dark Fibers (or any of them) are fully interrupted, or fail to meet designated specifications as contemplated in this SLA, such that the Dark Fibers cannot be accessed or used by the Infrastructure Seeker (an "Outage"), but excluding any such circumstances arising as the result of any event contemplated in other sections of this Agreement. The Measured Unavailable Time starts upon notification of an Outage by the Infrastructure Seeker to the Infrastructure Provider Infrastructure Seeker Care Centre by telephone and the release of the affected Service by the Infrastructure Seeker to Infrastructure Provider for testing and repair. The measured unavailable time ends when the affected Service is restored. DATE Page 3