1.1 Incoming Call Features
Feature Guide 29
This feature is also known as Busy Station Signaling (BSS).
Conditions
• An extension in a VM group (DPT/DTMF) cannot receive a call waiting tone. This is to prevent call
waiting tones from interrupting the recording of voice mail messages.
• Data Line Security
When an extension user activates Data Line Security, Call Waiting is turned off. (→ 1.10.5 Data Line
Security)
• Call Waiting Tone
A proprietary telephone (PT) user can select the preferred call waiting tone through personal
programming (Call Waiting Tone Type Selection).
• Caller Information
When an extension receives a call waiting tone, the caller's information will flash on the display for five
seconds, followed by a 10-second pause, then flashes again for five seconds.
• Call Waiting from the Telephone Company
Besides the Call Waiting feature provided by the PBX, you can also subscribe to your telephone
company's Call Waiting service and receive call waiting tones from the telephone company's analog
lines. If you do, this external call waiting tone will alert an extension user of another incoming CO line
call that is waiting. The user can answer the second call by disconnecting the current call or placing it
on hold using EFA.
For details, consult your telephone company.
• Call Waiting Caller ID (Visual Caller ID)
When using the call waiting tone supplied by the telephone company over analog lines, the caller's
telephone number and name can be received. Either the name or the number will flash on the display
for five seconds followed by a 10-second pause, then flash again for five seconds. Note that the
received caller information will not be displayed on telephones or wireless phones connected to SLT
ports.
Feature Guide References
1.7.4 Second Call Notification to Busy Extension
User Manual References
1.4.4 Call Waiting
1.7.3 Call Waiting/Off-hook Call Announcement (OHCA)/Whisper OHCA
3.1.2 Settings on the Programming Mode
* Includes CO line calls transferred from another extension or received via an incoming call distribution
(ICD) group, as well as doorphone calls.
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