General Features
EXtra Device Port (XDP)
Description
EXtra Device Port (XDP) expands the number of telephones available in the system by
allowing an extension jack to contain two telephones. A digital proprietary telephone (DPT)
and a single line telephone or DSS console and a single line telephone can be connected to the
same jack but have different extension numbers so that they can act as completely different
extensions.
Conditions
• XDP requires previous programming of the individual jack. Enable XDP mode for the
desired jack by System Programming. Immediately after changing the assignment, the
changed setting may not work for a maximum of eight seconds.
• If an analog proprietary telephone (APT) and a single line telephone are connected to an
XDP-enabled jack, neither telephone will work.
• If XDP is disabled for the jack, DPT and a single line telephone may be used as Paralleled
Telephones. APT and a single line telephone also can be used as Paralleled Telephones.
Connection References
• 2.3.3 Telephone Connection
Programming Guide References
• [600] EXtra Device Port
Features Guide References
• Paralleled Telephone
User Manual References
Not applicable.
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Features Guide