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VoIP

 
   
Course Name: Voice over Wi-Fi (VoFi / VoWLAN) Training
   
Deployment Options: Onsite - Instructor-Led Training
   
Course Duration: 2-3 days depending on audience background and options
   
Related Courses
 
 
Introduction:
 

ENO's extensive experience with VoWi-Fi has proven that Wi-Fi networks, VoIP services and the wired network infrastructure must be properly engineered for Voice over WiFi services to work. To date, the vast majority of voice over Wi-Fi installations have not be correctly deployed, resulting in project failure.

This Course provides:

  • The course includes
  • Brief review of Wi-Fi
  • VoIP over Wi-Fi
  • Strategic and technical implementation issues
  • Hands-on practical exercises to reinforce the topics covered.

Our VoIP training courses feature substantial hands-on practical with products from Aastra, Cisco, Microsoft, Snom, and other leading VoIP vendors.

 
Audience:
 

This course is designed for network engineers responsible for:

  • Planning
  • Designing
  • Implementing or
  • Supporting

Wi-Fi networks offering Voice over Wi-Fi or IP Telephony services

 
Prerequisites:
 
Those contemplating taking this course should have completed the above course or possess equivalent knowledge and experience.
 
Customize it:
 
This 2-3-day Voice over Wi-Fi (VoFi / VoWLAN) course will be customized to your needs and specifications. Eno.com will assist you in identifying those needs and specifications. A word to the wise, there are many vendors of telecommunication training. They will typically have a broad and general course, one size fits all, already developed and just put your organization?s name on the title slide. This minimizes their effort and time investment. At Eno.com, every course is made to your exact and exacting specifications. We help you ensure what you are getting is what you really need even if at the beginning you weren't too sure of what that was. We fit the class to your needs. We never fit you into our standard, one size fits all, class. Please call or e-mail to schedule a no-obligation conference call to help us understand your audience background and training objectives.
 
Objectives:
 
On completing this course, you will be able to:
 
Course Outline
 

Technology Review

  • Overview of Voice over IP
  • Review of Wi-Fi technologies
  • Progress with Convergence
  • The current Voice over Wi-Fi market
  • VoWiFi application models: Enterprise, Residential, Hot-Spot
  • VoWiFi service providers
  • VoWiFi handset manufacturers
  • Wi-Fi and VoIP equipment manufacturers

Current VoWi-Fi Technology

  • VoWi-Fi offerings from:
  • --Cisco
  • --Spectralnk
  • --Vocera
  • Current support for VoWiFi in Wi-Fi systems from:
  • --Cisco
  • --Aruba
  • --Trapeze, Nortel, Enterasys
  • --Bluesocket
  • --Other Wi-Fi vendors
  • VoWi-Fi support in mobile phones

Understanding critical Wi-Fi concepts

  • Associated data rate
  • Acutal data rate
  • Signal Strength
  • Receiver sensitivity
  • SNR
  • RSSI
  • Wi-Fi QoS
  • WMM
  • 802.11e

Understanding critical VoIP concepts

  • Media streams
  • Voice codecs
  • Voice framing
  • The role of RTP and RTCP
  • Call signalling:
  • --H.323
  • --SIP
  • --Cisco Skinny (SCCP)

Issues with VoWi-Fi

  • Sound quality
  • Handset features
  • Wi-Fi coverage
  • Handset battery life
  • Power issues and mitigation
  • Wi-Fi and VoIP Security
  • Using WEP
  • Using WPA
  • Authentication mechanism
  • Authorisation, Accounting (AAA)
  • Roaming issues: - Wi-Fi roaming support
  • --Mobile IP

VoWi-Fi Network Engineering

  • Surveying and auditing Wi-Fi networks for VoWi-Fi support
  • Traffic assessment and capacity planning
  • Wi-Fi network planning and (re)design
  • Optimising voice codecs
  • Engineering QoS using WMM
  • 802.11e extensions
  • Using proprietary QoS mechanisms

Assessing VoWi-Fi operation and Performance

  • Identifying problems in VoWi-Fi installations
  • Performing wireless analysis of:
  • --VoWi-Fi call signalling
  • --VoWi-Fi media streams
 
Other Expertise:
 
 

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