Algo offers a number of high quality telephone handsets and handset solutions for Push-to-Talk (PTT), Push-to-Mute (PTM), and Noisy Location functionality.  
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USB ATA enables the use of a traditional analog wired or cordless telephone, TTY/TDD terminal, fax machine, or other analog device with a Nortel IP Softphone 2050 (Version 2 B254 or newer) for BCM or CS 1000 and for select 1100-series IP Phones. The 4900 also provides an interface to a visual or audible alerting device.  
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The 2503 BCM Connector Kit provides the necessary cords and connectors for interfacing auxiliary ringing, music, or paging accessories to the Nortel BCM 450.  
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The 1021 USB Dual Handset Adapter (DHA) allows two people to share a Nortel/Avaya 1100-Series IP Phone so they can join in on the same private conversation with a remote party.   
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