This unit applies to the use of voice management servers to support single site and centralised call processing models. Relevant job roles include advanced voice over internet protocol (VoIP) network support specialist, VoIP network engineer and VoIP systems installer.
Not applicable.
1. Plan to implement enterprise IP communications | 1.1 Produce design considerations for planning and implementing IP-based voice communications networks 1.2 Produce a solutions plan to meet business expectations 1.3 Select the required resources to effectively install or upgrade voice-management servers 1.4 Perform, test and evaluate the installation or upgrade of voice call-management software against the solutions plan |
2. Plan, configure and test call-processing network elements for a single-site deployment | 2.1 Produce a topology of the voice network and plan the location of the call-processing network elements to best support the business requirements 2.2 Install and test voice servers to support user requirements, third-party session initiation protocol (SIP) phones and lightweight directory access protocol (LDAP) integration 2.3 Install and configure local area network (LAN) switches to support IP phones 2.4 Configure and test voice gateways according to gateway requirements to allow for internal calls and external calls and provide voice features 2.5 Configure and test the integration of voice servers with other media systems 2.6 Test and evaluate final configuration against the design requirements |
3. Manage security and privacy of IP voice network | 3.1 Produce design and installation templates for bulk deployment across the enterprise 3.2 Research and implement the use of a network support model to manage the performance and security of the IP voice network 3.3 Design and conduct simple security deployment scenarios to test the integrity and security of the voice network |
Required skills
communication skills to liaise with internal and external personnel on technical, operational and business-related matters
literacy skills to:
interpret technical documentation
write reports as required
numeracy skills to:
take test measurements and interpret results
evaluate performance and interoperability of network
planning and organisational skills to:
plan, prioritise and monitor own work
liaise with others to coordinate the process
problem-solving and contingency-management skills to:
adapt configuration procedures to requirements of network
reconfigure depending on differing operational contingencies, risk situations and environments
troubleshoot and debug wireless local area network (WLAN) issues
research skills to investigate appropriate hardware to meet requirements
technical skills to:
assess and implement security requirements
select and configure networking devices
use networking and network management tools.
Required knowledge
call-processing network element technology
codecs and their protocols for use
configuration, verification and troubleshoot procedures to undertake:
basic router operation and routing
switch with virtual local area network (VLANs) and inter-switching communications
design considerations and deployment schemes
interoperability of legacy private branch exchange (PBX) to IP voice communications
internetwork operating system (IOS) and internet protocol (IP) networking and network support models
LAN and wide area network (WAN) implementations
network topologies, architectures and elements
network, signalling and call management protocols
networking standards and protocols
security deployment scenarios
voice applications and protocols
VoIP technologies.
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. |
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 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. |
Networking
This unit contains employability skills.
No licensing, legislative, regulatory or certification requirements apply to this unit at the time of endorsement but users should confirm requirements with the relevant federal, state or territory authority.