Understanding Lines vs. Calls
It is sometimes easy to confuse lines and calls on your phone. Use these tips to avoid confusion:
Lines
The Cisco IP Phone 7905G and 7912G are single line phones which means they support one line per
phone extension. Your phone support team can configure your line to support from 1 to six calls. So
you might find yourself handling several calls, even though you have only one line on your phone.
Calls
Calls can have different states. Only one call can be active at any given time. An active call is a
connected call or a call in-progress (you are dialing a number or an outgoing call is ringing). Other
calls must be ringing in, on hold, or remote in use (for shared lines).
Going On-Hook and Off-Hook
Some phone tasks and instructions differ depending on whether the phone is on-hook or off-hook.
• On-Hook—The phone handset is resting in the cradle, no calls are active, and you do not have an
active dial tone. Your phone provides on-hook dialing, which enables you to enter or choose
phone numbers before activating the call.
• Off-Hook—The phone handset is lifted from the cradle, or you have pressed Dial or NewCall to
get a dial tone.
Choosing and Selecting Calls
Many phone features require that you select the calls you want to use with a particular feature. For
example, you might have four held calls, but you only want to join two of them to a conference call.
You can select just the calls you want to add to the conference call before activating the feature.
If you want to...
Choose a call
Select a call
Cisco IP Phone 7905G and 7912G for Cisco CallManager
Then...
Use the Navigation button to scroll through the call list until the pointer on
the left side of the LCD screen appears next to the call you want to choose.
Choose the call and then press more > Select to select the call. You may have
to press the more key several times. Selected calls are indicated with a
checkmark next to them. You can select multiple calls.
An Overview of Your Phone
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