TELOS TWOX12 USER’S MANUAL
INSTALLATION
CHAPTER 2 16
each call will “hunt” to an unused line. Sometimes one or two numbers will be reserved for
a “hot line” or “warm line” in which case those numbers would not be part of the hunt
group.
Special Considerations for Euro-ISDN (ETS 300) users
Some Euro-ISDN implementations deactivate BRI circuits which have been idle for more
than a given length of time. Since this is a normal occurrence, the Desktop Director and
system front panel will not show these lines out of service when this happens. While this
will not interfere with normal operation, it can give a false sense of “security” that
everything is working when, in fact, the circuit could have stopped working. It is
impossible for the Telos TWOx12 to distinguish between a deactivated circuit and a
malfunctioning circuit until you try to use it again. For this reason, if you are using ETS
300 and your phone system is mission critical, you should ask your Telecom Company to
disable this function.
Ordering Help
An appendix to this manual describes the ordering process for ETS 300 (Appendix 6) and
USA/Canada (Appendix 7) ISDN in detail, and include ready-to-go forms that can be used
to order lines from your telephone company. We strongly recommend confirming your
ISDN order in writing using those forms.
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