Administrator's Guide

Screen reference
555-233-506962 Issue 5 October 2002
The Incoming Call Handling Treatment page can (optionally) provide unique call
treatment for different incoming calls on any ISDN trunk group. The number of
unique treatments that can be specified in this table and the number of pages vary
depending on whether the Usage Allocation Enhancements feature is enabled and
on the amount of available system memory.
Unique digit manipulation capabilities, CPN/BN requests, and night service
destinations are possible for different types of incoming calls. The unique digit
manipulation capabilities can be particularly useful to accommodate different dial
plans for different services on an ISDN trunk type with a Service Type (field
entry) of
cbc (Call-by-Call). The table can also be used for ISDN trunk groups
that are not Call-by-Call. For example, an ISDN group with Service Type set to
mega800 could use the Incoming Call Handling Treatment table to distinguish
treatment of calls to different 800 numbers based on the Dialed Number
Identification Service (DNIS) number that is incoming to the switch.
Each row in the table consists of seven columns. The first three columns
(Service/Feature, Called Len, and Called Number) constitute a key that together
select which row or unique treatment should apply for an incoming call on the
group. The remaining four columns (Del, Insert, and so on) specify the treatment
to be provided for a call that matches the key.
If an incoming call is for a service listed in a row on the table, then that row may
specify the treatment for the call, depending on the other two columns of the key.
The Called Len field is used to continue the row determination. If the number of
digits received with the incoming call matches the number of digits in the Called
Len field for calls to the matched service, then this row may apply. If no other row
also contains a matching service and called length, then this row does apply. If
another row does exist with the same service and number length, then the Called
Number field will be used to continue the row determination.
If the leading digits received with the incoming call match the digits specified in
the Called Number field, then this row applies to the call. Therefore, with this
table, a unique treatment can be given to any incoming call, even if these calls are
to the same service or have the same length of digits. The remaining four fields
specify the unique treatment for the call once the row has been determined.
Together, the Del and Insert fields can be used to manipulate the incoming number
that will be used to route the call. The Per Call CPN/BN field can be used to
request CPN/BN from AT&T networks for specific calls incoming on the group.
The Night Serv field is used to have calls of different types routed to different
night destinations when night service is in effect.