Additional InformationImportant Safety InstructionsWhen using this unit, basic safety precautions shouldalways be followed to reduce the risk of fire, electricshock and injury to persons, including the following:1. Do not use the unit near water, for example, near abathtub, washbowl, kitchen sink, or laundry tub, ina wet basement, or near a swimming pool.2. Avoid using a telephone (other than a cordless type)during an electrical storm. There may be a remoterisk of electric shock from lightning.3. Do not use the telephone to report a gas leak in thevicinity of the leak.SAVE THESE INSTRUCTIONSFor Users in Australia and the UnitedKingdom• This unit is capable of being usedin conjunction with hearing aidsfitted with inductive coil pick-ups.The handset should be held as fornormal conversation. Foroperation, the hearing aid shouldbe set to its "T" position or asdirected in the operatinginstructions for the hearing aid.• This unit is designed to aid the visuallyhandicapped to locate dial keys and buttons.For Users in the United Kingdom• This unit is designed to be installed under controlledconditions of ambient temperature and a relativehumidity.• Avoid installing the unit in damp or humidenvironments, such as bathrooms or swimmingpools.• 999 and 112 can be dialled on the product afteraccessing the outside line for the purpose of makingoutgoing calls to the BT emergency (999) and (112)services.The method for accessing an outside line differsdepending on the SIP server. For details, confirmthe features of the SIP server.For Users in New Zealand• This equipment shall not be set to make automaticcalls to the Telecom ‘111’ Emergency Service.PTC General Warning• The grant of a Telepermit for any item of terminalequipment indicates only that Telecom hasaccepted that the item complies with minimumconditions for connection to its network. It indicatesno endorsement of the product by Telecom, nordoes it provide any sort of warranty. Above all, itprovides no assurance that any item will workcorrectly in all respects with another item ofTelepermitted equipment of a different make ormodel, nor does it imply that any product iscompatible with all of Telecom’s network services.The Use of IP Networks through the PSTN• Internet Protocol (IP) by its nature introduces delayinto speech signals as each data packet isformulated and addressed. Telecom AccessStandards recommends that suppliers, designersand installers using this technology for calls to orfrom the PSTN refer to ITU E Model requirementsin the design of their networks. The overall aim is tominimise delay, distortion and other transmissionimpairments, particularly for those calls involvingcellular and international networks, which alreadysuffer extensive delay.Echo cancellation• Echo cancellers are not normally required in theTelecom PSTN because geographic delays areacceptable where CPE return loss is maintainedwithin Telepermit limits. However, those privatenetworks making use of Voice over IP technologyare required to provide echo cancellation for allvoice calls. The combined effect of audio / VoIPconversion delay and IP routing delay can causethe echo cancellation time of ³ 64 mS to berequired.8 Operating Instructions Document Version 2011-09Additional Information