Panasonic KX-NT560 Manuale di riferimento rapido - Pagina 8

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Important Information

recommends that suppliers, designers and installers using this technology for

calls to or from the PSTN refer to ITU E Model requirements in the design of

their networks. The overall aim is to minimise delay, distortion and other

transmission impairments, particularly for those calls involving cellular and

international networks, which already suffer extensive delay.

R Echo cancellers are not normally required in the Telecom PSTN because

geographic delays are acceptable where CPE return loss is maintained within

Telepermit limits. However, those private networks making use of Voice over IP

technology are required to provide echo cancellation for all voice calls. The

combined effect of audio/VoIP conversion delay and IP routing delay can cause

the echo cancellation time of ³64 mS to be required.

Information for Users on Collection and Disposal of

Old Equipment and used Batteries

These symbols on the products, packaging, and/or accompanying documents

mean that used electrical and electronic products and batteries should not be

mixed with general household waste.

For proper treatment, recovery and recycling of old products and used

batteries, please take them to applicable collection points, in accordance with

your national legislation and the Directives 2002/96/EC and 2006/66/EC.

By disposing of these products and batteries correctly, you will help to save

valuable resources and prevent any potential negative effects on human

health and the environment which could otherwise arise from inappropriate

waste handling.

For more information about collection and recycling of old products and

batteries, please contact your local municipality, your waste disposal service

or the point of sale where you purchased the items.

Penalties may be applicable for incorrect disposal of this waste, in

accordance with national legislation.

For business users in the European Union

If you wish to discard electrical and electronic equipment, please

contact your dealer or supplier for further information.

Information on disposal in other countries outside the

These symbols are only valid in the European Union. If you wish to

discard these items, please contact your local authorities or dealer

and ask for the correct method of disposal.