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Watch our videos to learn how to install your 4400 series set telephone on your desktop or on the wall, or how to attach an optional expansion module or headset.
Be sure to use caution and to follow the safety instructions supplied with your equipment to properly connect your equipment and to avoid damage to the equipment or harm to yourself. To get started, verify which 4400 series telephone you have. (Note that installation of the 4424LD+ differs from other 4400 series telephones.) The model number is located under the handset. The style and color of your telephone may be different than the ones shown below.
Make your selection from the list on the left.
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Choose an installation video:
4400 series telephone: Desktop use 4400 series telephone: Wall Mount use 4424LD+ telephone: Desktop use HIC1 headset cable M12LU headset adapter DSS4450 Expansion Module |
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DSS44540 expansion module works with 4424D+ and 4424LD+ only) |
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