Instruction manual

Extended Flexible Central Office Trunk Software Support Page 1457 of 3156
Features and Services
The new XFCOT trunks cannot support the PPM frequency characteristics,
configured as the PPM ID, for each trunk. The PPM ID is configured for the
first trunk configured for the pack, and cannot be changed unless all trunks
are removed from the pack and then reconfigured. The same restrictions
apply to the busy tone indication ID.
Only static pad selection is supported on the new XFCOT cards. Pad selection
on a per call or per event basis is not supported.
Loop Start Supervisory Trunks and Japanese Central Office Trunks are not
supported on the new XFCOT cards.
The B34 Codec support is not provided by this feature. The B34 Codec
configured on a card allows the software to download an actual loop value for
pads, rather than long line or shot line notations.
Periodic Clearing is not supported on the new XFCOT cards.
Feature interactions
Dial Tone Detector
A Dial Tone Detector notifies the software that a dial tone has been received
for an outgoing call. With the XFCOT cards, dial tone detection is not
attempted until a SEIZE ACKNOWLEDGE signal is received for those
supervisions that require such a signal.
European XDID/DOD
Software support for European XDID/DOD cards and software support for
European XFCOT cards provide similar functionality in the following areas:
• Trunk Failure Monitor or barring
• Downloading of PPM information
• Configuration and downloading of static pad setting for short line and
long line, and
• Configuration download processing. Fields that are not filled due to
configuration limitations are left blank and are not validated or
interpreted by the firmware. The fields are treated as unused fields.