This amazing push-to-talk handset comes with a pre - installed noise - canceling microphone that can cut sidetone noise by up to 80%. It doesn't need a hook switch in the cradle. It features round receiver and transmitter ends and is equipped with an RJ22 4 - conductor connector. It's compatible with Cortelco 2500 and 2554 series telephones.
Using this handset is easy. Just connect it to your Cortelco 2500 or 2554 series telephone via the RJ22 4 - conductor connector. When you want to talk, use the push - to - talk feature. The noise - canceling microphone will make your voice clear by reducing sidetone noise. As for maintenance, keep it clean and dry. Avoid dropping it or exposing it to extreme temperatures. If there's any problem, don't try to repair it yourself, but contact the customer service.
