AT&T MERLIN LEGEND Release 4.0 Feature Reference page 45

Feature Reference
Telephone Differences
Queued Call Consoles
Auto Answer All cannot be used on a QCC.
Other Multiline Telephones
Auto Answer All cannot be used on MLX telephones, cordless telephones, or
wireless telephones.
Single-Line Telephones
Auto Answer All cannot be used on single-line telephones. This includes
single-line telephones with speakerphones.
Considerations and Constraints
When Auto Answer All is used, all voice announcements (including Voice
Announce to Busy) should be disabled because the device connected to the
GPA cannot answer voice-announced calls.
Auto Answer All cannot be used with a Hands-Free Unit (HFU).
Occasionally a second alert (or zip) tone may sound on incoming or intercom
calls. This is normal.
Auto Answer All should be used instead of Auto Answer Intercom to allow an
answering device to answer intercom calls. Auto Answer Intercom can cause
intercom calls to be dropped.
Feature Interactions
Auto Answer
Intercom
Auto Dial
Coverage
Forward and
Follow Me
Both Auto Answer All and Auto Answer Intercom can be programmed
on the same extension, but they cannot be used at the same time. Auto
Answer Intercom should not be used with answering devices.
At an analog multiline telephone with a General Purpose Adapter (GPA)
connected to it and set for Auto operation, you must lift the handset
before pressing an Auto Dial button. Do not use the Spkrphone button.
Auto Answer All is used when a receiver with an analog multiline
telephone wants Individual or Group Coverage calls answered by an
answering machine connected to the extension.
An answering device connected to an analog multiline telephone can
answer forwarded calls when Auto Answer All is activated.
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Auto Answer All