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
68
69
Allow unknown (default setting)
• Allow all unknown home calls to ring,
except calls with numbers saved in
the block list.
- This profile setting sets the
telephone to allow all unknown
home calls to get through and
ring. Calls with numbers saved
in the block list will be rejected.
UnknownToAns.S
• Forward all unknown home calls to
the answering system.
• This profile setting sets the
telephone to forward all unknown
home calls to the answering system.
Block unknown
• Block all unknown home calls.
• This profile setting sets the
telephone to block all unknown
home calls.
After selecting a profile setting, make
sure you have not turned off Smart call
blocker. Refer to the Set Smart call
blocker on/off section to it on.
NOTES
• If you set SCB On/Off to Off, selected
setting under Set profile will be
invalid, and all incoming home and
cell calls will ring, including calls with
numbers in your block list.
• There may be robocalls that you
do not want to miss. For example,
robocalls with announcements or
notices from schools or pharmacies.
You can set up your star name list with
these caller names to allow their calls
to get through to you. See Star name
list.
Block list
Add numbers that you want to prevent
their calls from ringing through. The
block list stores up to 1,000 entries.
NOTE
• Home or cell calls with numbers that
have been added to your block list
will be blocked.
Add a block list entry
1. Press MENU/SELECT to enter the
main menu when the handset is not
in use.
2. Press q CID or p to
scroll to Smart call blk. Press
MENU/SELECT.
3. Press q CID or p to scroll to Block
list, then press MENU/SELECT.
4. Press q CID or p to scroll
to Add new entry, then press
MENU/SELECT.
5. When the screen shows Enter
number, use the dialing keys to enter
a telephone number (up to 30 digits).
• Press q CID or p to move the
cursor to the left or right.
• Press MUTE/DELETE on the
handset to erase a digit.
• Press and hold MUTE/DELETE on
the handset to erase all digits.
• Press and hold REDIAL/PAUSE
to insert a three-second dialing
pause (a P appears).
-OR-
Press REDIAL/PAUSE to copy
a number from the redial list.
Press q CID or p , or press
REDIAL/PAUSE repeatedly to
locate the desired number. Press
MENU/SELECT to copy the displayed
number.
6. Press MENU/SELECT to move on to
the name.
7. When the screen displays Enter
name, use the dialing keys to enter
a name (up to 15 characters). Press a
key repeatedly until the desired
character shows on the screen.
The first character of every word is
capitalized.
• Press q CID or p to move the
cursor to the left or right.
• Press 0 to add a space.
• Press MUTE/DELETE on the
handset to erase a character.
• Press and hold MUTE/DELETE
on the handset to erase all
characters.
• Press TONE to change the next
letter to upper or lower case.
8. Press MENU/SELECT to store your
new block entry.