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17-2 Pri Progress Indicator Transport
Table 17-
Mapping of location in progress indicator at the originating switch
Value sent from terminating
PRI user
2–public network serving the local
user
3–transit network
4–public network serving the remote
user
5–private network serving the
remote user
6–local interface controlled by this
signaling link
7–international network
others
Note: This mapping applies to PRI-to-ISUP-to-PRI scenarios.
For Q.931 PROGRESS messages, the progress descriptions are mapped as
shown in the following tables.
Table 17-
Mapping of progress description in progress indicator for MCIPRI and
NAPRI originations
Value sent from terminating
PRI user (ATTPRI, MCIPRI, NAPRI)
1–call is not end-to-end ISDN;
further call progress information may
be available in-band
2–destination address is non ISDN
3–origination address is non ISDN
4–call has returned to the ISDN
Note: This mapping applies to PRI-to-ISUP-to-PRI scenarios.
297-2521-106 Standard 23.01 March 2001
Value sent to originating PRI user
4–public network serving the remote
user
3–transit network
4–public network serving the remote
user
5–private network serving the
remote user
3–transit network
7–international network
unknown
—end—
Value sent to originating PRI user
(MCIPRI, NAPRI)
1–call is not end-to-end ISDN;
further call progress information may
be available in-band
2–destination address is non ISDN
3–origination address is non ISDN
4–call has returned to the ISDN
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