For incoming calls

• Call Waiting settings are ignored except for hunt group call waiting where the call waiting tone is replaced by an alert on a call appearance button if available.

• Follow Me, Forward Unconditional and Forward Hunt Group Calls are used when set.

• If Do Not Disturb is set, only calls from numbers in the user's Do Not Disturb Exception list will alert if a call appearance is available.

Busy status

In both cases below, even when busy, the user may still receive alerts on other appearance buttons.

• For calls direct to the user's extension number The user is busy when all their available call appearances are in use. Instead of busy tone, the user's forward on busy is used if enabled or otherwise voicemail if available.  

• For calls to a hunt group of which the user is a member The user is busy to further hunt group calls when they have any appearance button in use on their phone. The only exception is calls to a collective hunt group with call waiting.

For outgoing calls

• Outgoing calls are treated exactly the same as calls made by non-appearance button users.

• External Calls made on a call appearance, which route out on a line for which the user also has a line appearance, will remain on the call appearance. The line appearance will indicate 'in use elsewhere'.

For call appearance buttons matched by a bridged appearance button

• If the bridged appearance is used to make or answer calls, the state of the call appearance will match that of the bridged appearance.

• If the call is put on hold by the bridged appearance user, the call appearance will show 'on hold elsewhere'.

Other

• Held/Parked Call Timeout If the user has parked a call, the parked call timer only starts running when the user is idle rather than on another call.

• Incoming calls routed directly to the user as the incoming call routes destination on a line for which the user also has a line appearance, will only alert on the line appearance. These calls do not follow any forwarding set but can be covered.