FEATURES GUIDE

General Features
Features Guide 207
Paralleled Telephone
Description
The digital proprietary telephone device can be connected in parallel with a single line
telephone (SLT).
When a parallel connection is made, an extension user can make and answer a call using either
telephone.
Conditions
• SLTs can be connected only to Jack 1 through 4.
• The digital proprietary telephone (DPT) can be used to perform normal operations whether
or not the SLT is enabled.
• In the SLT + digital proprietary telephone (DPT) combination, if 1 telephone goes off-hook
while the other telephone is on a call, the call is switched to the former.
• When receiving a call;
The SLT is enabled; Both the DPT and the SLT ring except when the DPT is in Handsfree
Answerback mode or Voice Alerting mode.
The SLT is disabled; DPT rings but the SLT does not ring. However the SLT can answer the
phone.
• When the SLT is in operation, the display and LED indicator on the paired DPT will show
in the same way as if the DPT is in operation.
• If eXtra Device Port feature is available, each telephone can act as completely different
extensions.
• The Call Waiting tone can be heard only by the DPT.
Installation Manual References
• 2.4.4 EXtra Device Port (XDP)/Parallelled Telephone Connection
Programming Guide References
• [005] Flexible CO Button/PF Key Assignment
• [100] Flexible Numbering
Features Guide References
• EXtra Device Port (XDP)
User Manual References
• 2.7.13 Setting the Parallel Connected Telephone Ringer (Parallelled Telephone)
• 4.1.3 Customising the Buttons