VoIP Telephone Systems

A definition

Voice over Internet Protocol (VoIP) is a general term for a family of transmission technologies for

delivery of voice communications over IP networks such as the Internet or other packet-

switched networks. – Wikipedia 2011

In other words, its a way for communicating viavoice over a network or the internet

What is VoIP

o More than a phone systemo Platform for communication and collaborationo Utilizes computer instead of phone networkso Integrates with computer systems (Outlook)o Can include videoconferencingo Well known examples

Skype, Google Talk, MSN Messenger

Why consider VoIP

Availability of legacy systemsIncreasing maintenance costsLack of supportLack of functionalityTelecommunications

Building a business case

Understanding the business Understand the environment Understanding the benefits Understand how can it enhance your business

Understanding VoIP

Hardware vs. software

Proprietary vs. Open source

PSTN vs. SIPCloud / Hosted

Things to consider

Current telephony services LAN and WAN infrastructure Different flavours of VoIP Costs & Support of VoIP Getting independent advice

Things to consider

Unified CommunicationsVideoconferencingAnalogue devicesMobile fleetSoft phonesRedundancyReception

VoIP Software

Open source

3CX Asterisk Trixbox

Proprietary

Cisco IPFX Siemens Zeacom Microsoft Lync

Hardware

Open source

Epygy Trixbox

Grandstream Linksys Polycom Yealink

Proprietary

Avaya Cisco Nec Nortel Samsung Siemens

Telco / Network

• Call Plus (2Talk, iTalk)• Compass• Orcon• Telecom / Gen-i• Telstra Clear• Solarix• Vodafone• World Xchange

• Kiwilink• Hitech Solutions

Vendors/Integrators

Gen-iConnect NZSiemensMicrosoft

Buy and Utilize the VOIP