VoIP- What is the Cost of Reliability?

Hybrid Phone System’s Advantages and how to avoid the pitfalls.

Presented By:

Eastern Telephone & Telecommunications

What is VOIP

Telephone service over data networksTransporting voice conversations via data packetsUtilizes the ubiquitous Internet ProtocolHence Voice Over IP

Benefits of VOIP

Cost Savings for Long Distance CallsConverged wiring infrastructure“Go anywhere” telephoneConnect with WAN or InternetLeverage InternetUse private WAN or public Internet

How it works

Place Call Compress Packetize TransmitPlace Call Compress Packetize Transmit

Receive Buffer Decompress AnswerReceive Buffer Decompress Answer

IPNetwork

What it is not

Not a complete stand-alone voice solutionIndependent of other systems100% guaranteed throughput

Pure IP Network Solution

Call Mgr..

Voice Mail

TI/PRI Gateway

Analog Trunk Gateway

Analog Sta.Gateway

All switching and call processing are done by separate control units connected over the data network, adding unnecessary bandwidth

issues.

Reliability Issues

Bandwidth Required vs Bandwidth AvailableQuality of Service (QoS)Stability of Customer Data NetworkReputation of Installer and EquipmentChanges to Data Network

Some VOIP Pitfalls

Poor Voice QualityConsumption of Network BandwidthSecurity IssuesMultiple points of failureEmergency 911 calls may fail

What the Experts are saying!

“There is no one architecture (yet) that can be called the standard for a network phone system. The important thing is to follow a strategy that makes sense for your business.Trashing your PBX and going all IP immediately probably isn’t it.”

Bill Michael - Computer Telephony

What the Experts are saying!

“The underlying assumption regarding ToIP is that the LAN/WAN is always available, with minimal downtime. This is a very risky assumption, because no LAN/WAN infrastructure is currently designed to meet the 99.999% reliability level of a PBX system.”

Alan Sulkin - Telecom Industry Consultant

The Hybrid Solution

Builds upon proven technologyForward and backward compatibleImplements architecture appropriatelyDelivers advanced features and benefitsProvides smoothest migrationBrings choice of technology to customers

Hybrid Network Solution

Voice Mail

Cabinet

Remote/Mobile Manager

Voice Mail

Cabinet

Single Line Phones

Voice MailCabinet

Digital Phones

IP Phones

The Hybrid Advantage

Integrates TDM and VOIP TelephonyReturn On Investment (ROI)TDM components continue working during data network failuresCan integrate via T1, fiber, ATM, Frame Relay, or data network VOIPSupports analog, digital, and/or VOIP telephones simultaneously