The Cisco 6921 is a two-line VoIP telephone. It features a digital display screen, two programmable line buttons, four feature soft keys, six dedicated feature keys, voicemail indication, and speakerphone. This phone does not support the multi-call/waiting.Call Handling
Answering Calls - How to answer incoming calls.
Making Calls - How to make calls from your telephone.
Speakerphone - Switching between the handset and the speakerphone.
Muting - Disabling and enabling the microphone on your telephone.
Call Pickup - How to pickup calls ringing on other phones in your office.
Call Hold - How to place calls on hold.
Call Park - How to park calls so you can retrieve them from another phone.
Transfer - How to transfer calls to another phone or voicemail box.
Conferencing - How to make conference calls.
Forward - How to forward your calls to another phone or directly to voicemail.
Call History - How to review your call history.
First Time Enrollment - Accessing your voicemail for the first time.
Checking Voicemail - How to check your voicemial.