Meridian America Link/Customer Controlled Routing - Manual (Page 350)

332 Chapter 12: Meridian 1 configuration for Meridian Link/CCR
553-3202-210 Standard October 1998
initiate a conference, the application receives a StatusChange hold
message.
¥ Retrieve also known as Restore, notifies the application when the set
that had invoked Hold retrieves the original call and becomes active
again.
The status change messages sent from Meridian 1 are defined in groups.
Group 0 is predefined to contain no messages, and group 1 is predefined to
contain all messages; the remaining groups are defined by the user. Status
events are assigned to status message groups on a per customer basis in
LD 15.
The status change messages on non-ACD DNs are reported to the server
defined at the VSID prompt in LD 15. For ACD DNs, these messages are
reported to the server defined at the VSID prompt in LD 23. However, for
most applications, the server defined in LD 15 is the same as the server
defined in LD 23.
Any individual telephone that is designated as an associated set (AST) can
be assigned to one of the status message groups in LD 10 (single-line
telephones) or LD 11 (multi-line telephones) by responding to the IAPG
prompt. Each telephone belongs to only one group. Only the status change
events defined in the group assigned to a telephone are reported. The status
change events can be reported for all DNs defined as associated sets.
An AST can be controlled by a host application over the Meridian Link. A
telephone must be configured as AST in LD 10 or LD 11 before a host
application can issue call processing requests (such as transfer, conference,
answer) or receive event reports on behalf of the telephone (such as status
change). For multi-line telephones, up to two DNs can be configured as
AST. For multiple appearance DNs (MADNs), the first DN to be configured
is identified as the associated set.