Cisco 7935 System Manual page 17

Chapter 40 Cisco IP Phones
Table 40-3 Phone Button Feature Description
Feature
AEC
Answer/release
Auto answer
Call park
OL-7135-01
Description
If you are configuring a template for the
Cisco IP Phone model 30 VIP, you must include one
occurrence of this feature and assign it to button 26.
Auto echo cancellation (AEC) reduces the amount of
feedback that the called party receives when the calling
party is using a speakerphone. Users should press the
AEC button on a Cisco IP Phone model 30 SP+ when
they are using speakerphone. Users do not need to press
this button when speakerphone is not in use. This
feature requires no configuration for it to work.
In conjunction with a headset apparatus, the user can
press a button on the headset apparatus to answer and
release (disconnect) calls.
If this feature is programmed on the template, activating
this button causes the speakerphone to go off hook
automatically when an incoming call is received.
You configure this feature for some phones
Note
models through the Phone Button Template
window. You configure this feature for some
phone models in the Phone Configuration
window.
In conjunction with a call park number or range, when
the user presses this button, call park places the call at a
directory number for later retrieval. You must have a call
park number or range that is configured in the system for
this button to work, and you should provide that number
or range to your users, so they can dial in to the
number(s) to retrieve calls.
Cisco CallManager System Guide
Phone Button Templates
40-17