advise reference notice ZIR-301202

Date	Monday  30th of December - Friday January 3rd, 2002
Time	06:00am - 18:00pm
Duration of Event	1 Week
Activity	During this time engineers will be carrying out annual upgrade and maintenance works on the Zircon national network.
Services Affected	This poses a hazard only to all network traffic. No downtime is anticipated. Redundant Links will continue to route traffic while maintenance is carried out on core network equipment.
Please be advised that our Network Engineers have scheduled this time to work on the annual Upgrade. This is being carried out in order to improve network. There will be no intermittent interruptions as a result of the upgrades. If you have any further queries please do not hesiate to Contact Us.