Assessor Resource

ICANWK610A
Design and build integrated VoIP networks

Assessment tool

Version 1.0
Issue Date: November 2018


This unit applies to the use of foundational elements of voice over internet protocol (VoIP) calls, and the description of dial plans for the design and implementation of gateways, gatekeepers and IP-IP gateways. Relevant job roles include advanced VoIP network support specialist, VoIP network engineer and VoIP systems installer.

This unit describes the performance outcomes, skills and knowledge required to use appropriate tools, equipment, software and protocols to design and build an internet protocol (IP)-based integrated voice network for small to medium enterprises.

You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)

Prerequisites

Not applicable.


Employability Skills

This unit contains employability skills.




Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

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 VoIP network

configure and test for voice gateways

design site numbering plan, dial plans and priorities

use networking and network management tools

configure and test real time protocols, call management protocols and gateway signalling protocol in the network elements

implement voice systems and applications.

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

verbal 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.


Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assingnment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)


Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

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:

coordinate the process in liaison with others

plan, prioritise and monitor own work

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 WLAN issues

research skills to investigate appropriate hardware to meet requirements

technical skills to:

select and configure networking devices and assess and implement security requirements

use networking and network management tools.

Required knowledge

codecs and their protocols for use

configuration, verification and troubleshooting procedures to undertake:

basic router operation and routing

switch with VLANs and inter-switching communications

design considerations and deployment schemes

gateway technologies

IOS and IP networking models

procedures and techniques for implementing LAN/WAN topologies

network topologies, architectures and elements

networking standards and protocols

voice applications and protocols

VoIP technologies.

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 requirements may include:

applications for dial peer types

applications of different types of voice ports

calling privileges

functionality of digital signal processor (DSP)

grade of service

latency

numbering plan

quality of service

requirements, complexity and types of codecs (coder-decoders):

G.711

G.722_64K

G.723.1

G.726

G.728

G.729

IIBC MODE 30

ILBC MODE 20 - internet low bitrate codec

role and type of gateways

voice quality requirements.

Network elements may include:

call managers

gatekeepers

gateways

IP phones

routers

servers

soft phones

switches

toll managers.

Real time protocols may include:

compressed RTP (CRTP)

control protocol (RTCP)

real-time transport protocol (RTP)

Secure RTP (SRTP).

Signalling protocols may include:

H.323

media gateway control protocol (MGCP)

skinny client control protocol (SCCP)

session initiation protocol (SIP).

H.323 protocol suite may include:

call control

media control

registration, admission and status (RAS).

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
Determine the design requirements of an IP-based voice network including the choice of network elements 
Evaluate the various applications of real time protocols and of signalling protocols for an appropriate gateway 
Design a site numbering plan including digit manipulation and path selection process 
Plan and assign calling privileges as required 
Predict VoIP call flow and potential impact on voice quality considerations and network performance 
Produce the design layout of the voice network according to the design requirements 
Design and configure a gateway and a gatekeeper to using H.323 protocol suite for dial plan resolution and call admission control for the network 
Configure and test the use of real-time protocols, call management protocols and gateway signalling protocol in the network design 
Analyse the function and interoperation of gatekeepers within an IP communications network 
Analyse the IP-to-IP gateway features and functionality requirements for a given network design requirement 
Configure the gatekeeper to support an IP-to-IP gateway 
Configure and test the IP-to-IP gateway to provide address hiding, protocol and media interworking and call admission control implementations 
Produce test results and evaluate against design requirements 

Forms

Assessment Cover Sheet

ICANWK610A - Design and build integrated VoIP networks
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

Feedback to student

 

 

 

 

 

 

 

 

Assessor name:

Signature:

Date:


Assessment Record Sheet

ICANWK610A - Design and build integrated VoIP networks

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

Date: