AT&T MERLIN LEGEND Release 3.1 Maintenance And Troubleshooting Manual page 171

800 NI-BRI Module Problems
Table 4–7 Continued
Result Description
Code
continued
Corrective Action
Possible causes for this error are:
No calling party number
(Error identified at Incoming Voice Call Test, Step 3)
Note: One or both of the following conditions can
result in the absence of calling party number:
- Originator is provisioned for privacy.
- Receiver (BRI line under test) is provisioned for
non-delivery of calling party information.
Outgoing and/or incoming calls are not possible at
all times .
(Error identified at Outgoing Voice Call Test, Step 3
and/or Incoming Voice Call Test, Step 2)
This condition may or may not be detectable by
performing the above tests only once. Therefore,
repeat the tests several times, mixing outgoing and
incoming voice calls, varying the disconnecting
end, connecting on some calls but not others, etc.
Features provisioned
NI-BRI features are provisioned at the CO for
features other than normal call handling, such as
transfer, conference, or additional call offering. With
additional call offering provisioned, a voice call can
be presented to a busy facility undetected by both
calling and called parties. Therefore, this condition
is not detectable by manual testing. The condition is
possible if incoming calls can be successfully
received.
Control Unit Problems
Continued on next page
4–81