5 Regulations and safety notices22English Your telephone company may make changes in its facilities, equipment, operations,or procedures that could affect the proper functioning of your equipment. If they do,you will be notified in advance to give you an opportunity to maintain uninterruptedtelephone service.If this equipment should fail to operate properly, disconnect the equipment from thephone line to determine if it is causing the problem. If the problem is with theequipment, discontinue use and contact your dealer or vendor.Caution: To reduce the risk of fire, use only No. 26 AWG or largerUL Listed or CSA Certified Telecommunication Line Cord.TBR 21This equipment has been approved [Council Decision 98/482/EC - "TBR 21"] forsingle terminal connection to the Public Switched Telephone Network (PSTN).However, due to differences between the individual PSTNs provided in differentcountries, the approval does not, of itself, give an unconditional assurance ofsuccessful operation on every PSTN termination point. In the event of problems,you should contact your equipment supplier in the first instance.Notice for AustraliaFor safety reasons, only connect headsets with a telecommunications compliancelabel. This includes customer equipment previously labelled permitted or certified.Notice for New Zealand1 The grant of a Telepermit for any item of terminal equipment indicates only thatTelecom has accepted that the item complies with minimum conditions forconnection to its network. It indicates no endorsement of the product byTelecom, nor does it provide any sort of warranty. Above all, it provides noassurance that any item will work correctly in all respects with another item ofTelepermitted equipment of a different make or model, nor does it imply thatany product is compatible with all of Telecom's network services.2 This equipment is not capable, under all operating conditions, of correctoperation at the higher speeds for which it is designed. Telecom will accept noresponsibility should difficulties arise in such circumstances.3 Some parameters required for compliance with Telecom's Telepermitrequirements are dependent on the equipment (PC) associated with thisdevice. The associated equipment shall be set to operate within the followinglimits for compliance with Telecom's Specifications:a There shall be no more than 10 call attempts to the same numberwithin any 30 minute period for any single manual call initiation,and