Elements and Performance Criteria

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

Design considerations may include:
access
additional resources for new plan
call processing network element location
deployment plan:
centralised call processing model
distributed or decentralised call processing model
single or multiple LAN sites
dial plan
encryption
existing IP network capability
existing legacy PBX
failure to WAN and internet access
feasibility
grade of service (GoS)
growth
interoperability between systems and protocols
power back up
quality of service (QoS)
security.
Solution plans may include:
design
execution
implementation testing
management
review and optimisation.
Resources may include:
call-processing network equipment
protocols:
call control
H.323
LDAP
media control
media gateway controller protocol (MGCP)
registration, admission and status (RAS)
signalling connection control part (SCCP)
SIP
software tools
support tools
technical support and backup.
Voice call-management software may include:
Asterisk
Cisco voice call manager.
Call-processing network elements may include:
call manager
call processing agent
IP phones
routers
SIP phones
switches
voice gateways
voice server.
User requirements may include:
calling patterns
groups:
hunt
paging
profiles
roles
security access.
Gateway requirements may include:
analog and digital trunking
call coverage
calling patterns
calling privileges
dial plans
digital signal processing (DSP) hardware
external calls to public switched telephone network (PSTN)
route patterns and filters.
Voice features may include:
answer call
barge
call park
call pickup
call transfer
conference
intercom
music on hold
originate call
privacy.
Media systems may include:
chat
email
instant messaging (IM)
presence.
Network support model may include:
backup support and recovery
call manager monitoring
monitoring tools:
Call Manager
Microsoft Event Viewer
Microsoft Performance Monitor
Sniffer Trace
network management:
accounting
configuration
fault
performance
security
physical and network security
power backup
reporting mechanism
serviceability
troubleshooting.
Security deployment scenarios may include:
exploiting the network:
denial of service (DoS) and OS exploitation and countermeasures
eavesdropping and interception attacks and countermeasures
infrastructure flooding attacks and countermeasures
simple network reconnaissance:
dynamic host configuration protocol (DHCP) response sniffing and spoofing and countermeasures
hacking devices and hacking countermeasures
port scanning and port scanning countermeasures
sniffing and sniffing countermeasures
virtual network computing (VNC) enumeration and VNC countermeasures.

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.

Overview of assessment

Critical aspects for assessment and evidence required to demonstrate competency in this unit
Evidence of the ability to:
produce design plan and requirements of call processing network elements
configure and test voice gateways and LAN switches
evaluate voice call manager server requirements and design voice call systems and applications
implement voice systems and applications on voice call manager
manage security of voice network.
Context of and specific resources for assessment
Assessment must ensure access to:
site where network installation may be conducted
hardware and software
organisational guidelines
computers
stand-alone and lightweight WLAN controllers and AP
hardware and software LAN/WLAN voice technologies
appropriate learning and assessment support when required
modified equipment for people with special needs.
Method of assessment
A range of assessment methods should be used to assess practical skills and knowledge. The following examples are appropriate for this unit:
direct observation of the candidate installing, configuring and testing a new or updated network
evaluation of documentation prepared by the candidate outlining testing procedures, test results, recommendation to network changes and completion records
oral or written questioning of required knowledge.
Guidance information for assessment
Holistic assessment with other units relevant to the industry sector, workplace and job role is recommended, where appropriate.
Assessment processes and techniques must be culturally appropriate, and suitable to the communication skill level, language, literacy and numeracy capacity of the candidate and the work being performed.
Indigenous people and other people from a non-English speaking background may need additional support.
In cases where practical assessment is used it should be combined with targeted questioning to assess required knowledge.