User Guide
Table Of Contents
- IS8121-X_QSG_V2_20210204
- IS8121-X_IS8122-X_SCB_V1.1_20210616_BW
- IS8121-X_WEBCIB_v1_210525-compressed
- Install | Set up 
- Operate
- Make, answer or end a home call
- Make, answer or end a cell call
- Call waiting on the home line
- Call waiting on the cell line
- Predial via home call and cell call
- Answer an incoming cell call while on a home call
- Answer an incoming home call while on a cell call
- View dialing options
- Option while on a call
- Join a call
- Intercom
- Sound
- Temporary tone dialing
- Find handset
- Use the phone menu
- Phonebook | Phonebook entry
- Redial list
- Chain dialing
- Caller ID
- About caller ID
- Save a caller ID log entry to the phonebook
- Save a caller ID log entry to block list
- Save a caller ID log entry to allow list
- Save a caller ID log entry to Star name list
- Review the caller ID log
- Dial a caller ID log entry
- Delete caller ID log entries
- Caller ID memory match
- Missed call indicator
- Introducing Bluetooth©
- Bluetooth setup
- Remote voice control
- About Smart call blocker*
- Set profile
- Block list
- Allow list
- Star name list
- Screening announcements
- Voice guide to set Smart call blocker
- Call handlings with Smart call blocker
- Answering system
- Difference between the built-in answering system and voicemail service
- Use your built-in answering system
- New message indication
- Turn on or off the answering system
- Playback messages
- Delete all messages
- Answering system remote access
- Call intercept while using answering system
- Recording memo
- Turn on or off the call screening
- Screen a call with answering system
- Annoucement
- Retrieve voicemail
- Configure | Settings
- General product care
- Technical specifications
- Frequently asked questions
28
29
Handset display icons
1
• The battery is low
and needs charging.
2
• The battery is
charging.
3
• The battery is fully
charged.
4
• Handset ringer is off.
5
• New voicemail
received from your
telephone service
provider.
6
NEW
• There are new Caller
ID log entries.
7
ANS ON
• Answering system is
on.
8
MSG#
5/10
• Number of new/old
messages recorded.
9
ECO
• The ECO
mode activates
automatically to
reduce power
consumption when
the handset is
within range of the
telephone base.
Handset alert tones
1 short
beep
• A key is pressed.
• Plays at the end of each
message playback.
• End of recording.
1 long
beep
• Beginning of recording.
• Plays at the end of all
messages playback.
2 short
beeps
• Error tone. The
command has failed.
• You have reached the
beginning or end of the
list.
• You have reached the
minimum or maximum
listening volume.
3 short
high-
pitched
beeps
• Confirmation tone.
The telephone has
completed the
command successfully.
4 short
beeps
• Low battery warning.
Handset lights
1
CHARGE
• On when the
handset is charging
in the telephone
base or charger.
2
• On when the
speakerphone is in
use.
Telephone charger
1
1 Charging pole
Telephone base
1
3
4
5
6
7
8
9
2
1
VOL +
• When the telephone
is not in use, press
to increase the
telephone base ringer
volume.
• During call screening
or message playback,
press to increase the
listening volume.
VOL -
• When the telephone
is not in use, press
to decrease the
telephone base ringer
volume.
• During call screening
or message playback,
press to decrease the
listening volume.
2
New message indicator/
Volume indicator
3
ANS ON
light
• On when the built-in
answering system is
turned on.