Lucent Technologies Release 7 VC-LEV (Voice Conditioner DSP Port Level)

DEFINITY Enterprise Communications Server Release 7

Maintenance for R7r

555-230-126 Issue 4

June 1999

Maintenance Object Repair Procedures

9-1922VC-LEV (Voice Conditioner DSP Port Level)

VC-LEV (Voice Conditioner DSP Port Level)

Enable the MMCH feature on the

form

before changing th e fields.

The Voice Conditioner (VC) Port Level MO monitors VC efficiency by tracking the

number of VC ports that are in-servic e, and then comparing that number with the

value entered in the VC field on the System-Parameters Maintenance form. This

VCs field is located und er the Minimum Maintenance Thresholds section. The

VCs field contains the minimum numb er of VC ports needed for the Multimed ia

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 chang ed to a number greater

than 0. For example, administering 8 in tha t field means 1 circuit pa ck. The

algorithm for determining that a low level of VC reso ur ces exists uses th e nu mber

entered in the VCs field, and the numb er of VCs that are in-service in the system.

Each VC circuit pack c ontains 16 physical ports : 8 ports are reserved for

VC-DSPPT ports, and the remaining 8 ports are desig nated as VC-SUMPT ports.

The 8 DSP ports are made up of 4 encod er and 4 decod er resources that encode

and decode audio formats. Thus,

. If the number of in-service VC port s falls below the

MMCH port capac ity (value entered on the System-Parameters Maintenance

form under the Minimum Maintenance Thresholds sec tion

and

in the VCs

field), a

VEC-LEV error is logged. If this outage continues for 15 minutes a MAJOR alarm

is raised.

VC ports are a key part of the MMCH feature, any loss in the number of ports

available for use degrad es the MMCH customer defined service level.

If a VC circuit pack or p ort is busied out using the busyout board or busyout

port command, these out-of-servic e ports are not included in the VC level

calculation, thus allowing a t echnician to busy out a VC circ uit 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