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Event Reporting and U-Abort Capabilities
Issue 7 May 1998
3-43
■ If the party being dropped is local to the ECS, then the extension of the
party being dropped is passed (primary extension for TEGs, PCOLs,
bridging).
call_id
This ECS-assigned call identifier is used to associate event reports to calls and
identify a call the adjunct wants to control. The call identifier is unique within the
ECS.
party_id
The ECS-assigned identifier that uniquely identifies a party on a call. The ECS
provides the identifier and the adjunct should retain it for future operations. The
party identifier is unique within the call_id.
user to user information
(Contains up to 32 bytes.) If a call has User to User Information (UUI) that came
from an ISDN DISCONNECT message or in a Third Party Drop Request stored
with it, and a party drops from the call and a Drop Event Report is sent, then the
UUI is included in the report. UUI is not sent if it did not come from either
DISCONNECT or Third Party Drop.
The UUI IE sent over an ISDN trunk can contain more data than the UUI IE sent to
ASAI. This happens when the ISDN trunk group is administered with UUI IE
Treatment set to “shared”. The UUI for ASAI is packed within the shared UUI
before it is sent over an ISDN trunk, and is unpacked at the other end.
This is transparent to the ASAI adjuncts, with 2 exceptions:
1. If the maximum size UUI allowed on the ISDN trunk is exceeded, then the
lower priority data items will be dropped. Whether or not this means that
ASAI UUI is dropped depends on the priorities of the data items. These
priorities are administered on each trunk group form. Each item stored in
shared UUI uses two extra bytes.Therefore, if the ISDN trunk group is
administered to allow a shared UUI length of 32 bytes then the ASAI UUI
will be limited to 30 bytes instead of 32.
2. If a service provider, or customer equipment other than a DEFINITY ECS
(R6.3 or later) will be interpreting the contents of the UUI IE, then the trunk
group used to place those calls should have its UUI IE Treatment set to
“service-provider”. This sends the UUI as specified by the ASAI application,
without change.
For more information, see the Section, ‘‘Integrated Services Digital Network
(ISDN),’’ in Chapter 12, ‘‘ASAI and Feature Interactions.’’