Huawei ETS2551, Руководство пользователя

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hears nothing, but the calling can here what called say (Vice versa). When
caller presses and holds this key for a while again, both parties can make
conversation.
<CALL/REDIAL> key
When the FWT is in standby state, if no telephone number is displayed on the
screen, pressing <
CALL/REDIAL
>, you can view the last dialed number and
the FWT will redial the number; if there is a number displayed on the screen, the
FWT will call back the number after you press the key.
After a speed dialing is setting, you only need to press correspond key (from 1 to
9) and then press the <
CALL/REDIA
L> key, the set number is dialed.
Pressing this key, you can answer the call in hand-free mode.
<HANDFREE> key
In the standby state, pressing this key, you can directly answer a call or hear the
dialing tone, which means you can make a call, without picking up the handset.
<R> key
This key is used in supplementary services to control the call transfer and
three-way calling. Its performance is similar to pressing <
CALL/REDIAL
> or
quickly flapping the heaver. For the details, refer to the "Supplementary
Services".
<IP> key
Using this key, you can dial the configured IP card number. For more information,
refer to the "IP Card Calling".
Alphanumeric keys
Pressing these keys, you can input the corresponding alphanumeric symbols.
FWT Back View and Description
Figure 3-2 shows the FWT type that is fixedly installed with the indoor antenna.