Avaya Definity SI, Maintenance Manual, Page: 2573 / 2968

TONE-BD (Tone-Clock Circuit Pack)
Issue 4 May 2002 10-1787 555-233-123
International Settings [G3i V2]
The TN780 Tone-Clock circuit pack uses three firmware configuration parameters
for international support [G3i V2]. The following two are automatically set by the
software load for the targeted country:
■
The circuit pack’s country-code (USA, ITALY, AUSTRALIA, etc.)
■
The circuit pack’s companding mode (mu-Law or A-Law)
The third configuration parameter is used only for Italy (country code: ITALY), and
selects whether new versus old ISPT (Istituto Superiore Poste Telegrafi) tones will
be used for dial and confirmation tones. Values for dial confirmation tone can be
set independently on the change system-parameters miscellaneous form.
Whenever such changes are made, the effects are immediately enforced on all
TN780 Tone-Clock circuit packs without disrupting tone or timing services.
Italian Tone Settings (New ISPT Value)
In addition the TN780 allows customization of up to six system tones in order to
meet specific country needs. These changes are made via the change
system-parameters country-options form.
The TN2182 allows the same International changes as the TN780 but allows the
customization of up to 24 system tones in order to meet specific country needs.
These changes are made via the change system-parameters country-options
form.
How to Replace a Tone-Clock Circuit Pack
Replacing the Tone-Clock circuit pack is a service-disrupting procedure on Port
Networks with a single Tone-Clock, because the Tone-Clock circuit pack is always
needed to generate clocks for its network. For EPN Tone-Clock replacement
where no second Tone-Clock circuit pack exists, only that EPN is affected. When
the circuit pack is removed, all calls are dropped immediately, the EPN enters
emergency transfer within one minute, and no calls can be set up from or to that
EPN. However, if the PPN Tone-Clock is removed for replacement in a Standard
Reliability Option system, the System Emergency Transfer feature is activated
within milliseconds, and the entire system is disrupted; no calls can be placed,
and existing calls are dropped.
Tone Default Old ISPT Value
Dial Continuous Cadenced
Confirmation Cadenced Continuous