User Guide

DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
Maintenance Object Repair Procedures
Page 10-1649VC-LEV (Voice Conditioner DSP Port Level)
10
VC-LEV (Voice Conditioner
DSP Port Level)
Enable the MMCH feature on the System-Parameters Customer-Options form
before changing the fields.
The Voice Conditioner (VC) Port Level MO monitors VC efficiency by tracking the
number of VC ports that are in-service, and then comparing that number with the
value entered in the VC field on the System-Parameters Maintenance form. This
VCs field is located under the Minimum Maintenance Thresholds section. The
VCs field contains the minimum number of VC ports needed for the Multimedia
Call Handling (MMCH) feature, and is an administrable field. The VCs field must
contain a number between 0 and 126, and is entered by the system
administrator. The MMCH feature must be enabled on the System-Parameters
Customer-Options form before the VCs field can be changed to a number
greater than 0. For example, administering 8 in that field means 1 circuit pack.
The algorithm for determining that a low level of VC resources exists uses the
number entered in the VCs field, and the number of VCs that are in-service in the
system.
Each VC circuit pack contains 16 physical ports: 8 ports are reserved for
VC-DSPPT ports, and the remaining 8 ports are designated as VC-SUMPT ports.
The 8 DSP ports are made up of 4 encoder and 4 decoder resources that
encode and decode audio formats. Thus,
one VC circuit pack is required for
every 8 ports of MMCH port capacity
. If the number of in-service VC ports falls
below the MMCH port capacity (value entered on the System-Parameters
Maintenance form under the Minimum Maintenance Thresholds section
and in
the VCs
field), a VEC-LEV error is logged. If this outage continues for 15 minutes
a MAJOR alarm is raised.
Resolving VC-LEV Errors/Alarms
VC ports are a key part of the MMCH feature, any loss in the number of ports
available for use degrades the MMCH customer defined service level.
If a VC circuit pack or port is busied out using the busyout board or busyout
port command, these out-of-service ports are not included in the VC level
calculation, thus allowing a technician to busy out a VC circuit pack for
maintenance reasons without causing a MAJOR alarm to be raised.
MO Name (in
Alarm Log)
Alarm
Level Initial Command to Run Full Name of MO
VC-LEV MAJOR See ‘‘
Resolving VC-LEV Errors/Alarms’’ VC-LEV