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Call WaitingCall waiting enablesyou toreceive another call when there is already an active call on yourphone. If it is disabled,the newincoming call will berejectedautomatically.You can enable call waitingfeature and setthe phone to play a warning toneto avoid missing important callsduring a call.Yealink IP phonesalso supportcall waitingon code and off code to activate and deactivate server-side call waiting feature.They may vary on different servers
