Implementing Voice over IP
Develop – Educate – Blueprint – Prepare Voice over IP is fast becoming a
critical enterprise technology. It is the foundation for presence and collaboration technologies, which are gaining
a foothold. Voice requires more stringent network characteristics and replaces the traditional telephone signaling
system with proprietary and standards-based protocols.
The documents included in Stage 1 provide a foundation for the
initial assessment of your network for VoIP and an overview of the technology.
Documents
- Preparing Your Network for IP Telephony
- SIP: Unlocking the Promise of Open Communications
- SIMPLE: Extending SIP for IM and Presence
Design – Construct – DiagramVoice requires more stringent
network characteristics than data. For example, latency can cause echo or delays in transmitting
voice, while jitter can cause degradation of sound quality. The use of real-time agents can
greatly assist in detecting these problems and reporting them to the Service Desk for correction.
The documents included in Stage 2 provide the technical
foundation for establishing and managing a robust network
that will support voice.
Documents
- TP: IP Telephony
- Measuring and Diagnosing VoIP Voice Quality
- Key Performance Indicators for Enterprise Networks
- Securing VoIP: The Sky Isn’t Falling
- Island Hopping: Interconnecting VoIP Systems and Services
Assess – Evaluate – Compare As telephony vendors
end of life their TDM offerings, leaving VoIP the only choice, the market has responded,
resulting in commercial and open source products. Traditional PBX vendors, network
equipment vendors, and even Microsoft are all vying for a piece of the pie, resulting
in products that claim to lay the foundation for collaboration and instant messaging.
The documents included in Stage 3 provide product reports that detail
specific technologies and the vendors offering them.
Documents
- Microsoft Office Live Communications Server 2005
- Carrier-class IP PBXs for the Enterprise
- Cisco CallManager 4: Is Seeing Believing?