Network Call Redirection (NCR) (Category A only)
Issue 1.0 May 2003
195
●
324 NCR: PSTN NCD no disc
●
325 NCR: Internal system err
Things to know
The following important items should be known.
Failures
Failures can occur in NCR after the
queue-to-best
or the
~r route-to number
vector step is executed. Vector programming should be provided to route the call in
another manner is the NCR operation fails.
●
Failure to invoke Network Call Transfer: If Network Call Transfer is invoked and the
public network rejects the call, the call will revert to a trunk-to-trunk transfer. In this case,
the call is not lost. However, vector processing is stopped at the redirecting
communication server.
●
Failure to invoke Network Call Deflection: If NCD is invoked and the public network
rejects the call, the call is disconnected form the rerouting communication server. In this
case, the call is lost. No vector processing takes place at the redirecting communication
server.
NCT and call vectoring
With NCT, the transferring vector may or may not answer the first leg of the call before
redirecting the call over the public network. If the call has not been answered by vector
processing, the communication server will automatically answer the call before requesting
NCT.
NCD
With NCD, no steps in the vector can be executed that answer the call or the redirection
will not occur. Vector steps that should not be used before NCD is invoked are:
●
announcement
●
wait hearing music
●
converse-on split/skill
●
collect
Announcement vector steps
Announcement vector steps cannot be used with NCD before NCD is to be invoked.
Announcement vector steps can be used in following vector steps if NCD fails.
Announcement vector steps can be used with NCT.
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