![Perimeter Technology VU-ACD /100 Maintenance Manual Download Page 165](http://html.mh-extra.com/html/perimeter-technology/vu-acd-100/vu-acd-100_maintenance-manual_1529976165.webp)
5-13
VU-ACD™/100 Maintenance Guide – Host/DOS
Configuration Changes
5.2.3.1
RC/V Messages
RC/V messages are requests to change the configuration in the 5ESS switch. They are originated
at the RC/V screens in VU-ACD/100 For Windows. Each message is formatted and sent to the switch.
When a response is received it is displayed on the RC/V screens.
?
The 5ESS treats RC/V messages as low priority tasks with 6-second or longer
delays required to receive and respond to each message. A query can entail the processes
of multiple messages with cumulative delays between responses.
There are two general types of RC/V messages – queries and change requests.
RC/V can query for lists of teams, subgroups, agents, and positions. Call Queue, Call Class, and other
provisioning information (range allocations in the switch) are also available if the 5ESS link has
been initialized based on entries made in the local provisioning table.
A change request follows the sequence described below:
1. RC/V searches the local provisioning database and displays a list of 5ESS
parameter ranges.
2. When the user chooses an item to add, delete or edit or delete, RC/V sends a query to the
5ESS switch asking for the current data for this resource.
3. Data received from the switch is displayed on the RC/V screen.
4. When the user makes a change a change request message is sent to the 5ESS.
5. The switch returns a status message after the request has been processed. Data contained in
the response appears on the RC/V screens and is written to the local provisioning database.
?
The 5ESS knows nothing about subgroups. Changes to Subgroups do not
require sending RC/V messages to the switch.
The 5ESS Provisioning database maintained on the VU-ACD/100 host speeds up the display of
information on the RC/V screens and serves as the primary initialization source when a 5ESS
switch initialization occurs. VU-ACD/100 always references the database maintained at the 5ESS
as the official source of ACD configuration information. The penalty for this is the inherent
delays in receiving responses from the 5ESS to RC/V queries and change requests.
5.2.3.2 5ESS Switch Initialization
At startup a VU-ACD/100 process completely defines the known configuration of the 5ESS
switch. The process derives data from the 5ESS Provisioning Table.
Initialization messages generated by the VU-ACD/100 process mimic those found in a DMS-100 data
stream. Ten-digit ACD Group directory numbers are constructed from the last three digits of the
VU-ACD/100 host serial number, two-digit node number and five-digit Team number. A composite
5ESS ACD Group DN may still conflict with a real DN on a DMS-100 switch. If this should
occur, the five-digit prefix can be overridden by an installation parameter stored in a data file.