Connect802 is a nationwide wireless network equipment reseller providing system design consulting, equipment configuration, and installation services.


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Wireless Voice-over-IP (VoIP)
Voice-over-Wireless-LAN (VoWLAN)
Network Design Consulting Services

Connect802 RF engineers are specialists at designing, performing RF spectrum analysis, and providing Wi-Fi consulting for wireless Voice-over-IP (VoIP)/ Voice-over-Wireless LAN (VoWLAN), wireless multi-media, and mobile communication systems.

Buy Wireless Voice-over-IP VoIP Design, Consulting and RF Spectrum Analysis Services From Connect802 to Take Advantage of Our Extensive Experience

The Marketplace for Wireless Voice-over-IP VoIP (Voice-over-Wireless-LAN VoWLAN)

The increasing growth of wireless voice-over-IP (VoIP) telephony results in more and more 802.11 Wi-Fi wireless networks being called on to support wireless voice phone calls. Mobile handsets, and notably products like the iPhone, have moved the enterprise into a wireless VoIP world.

Whereas once voice and data were managed as separate technologies, the convergence of telephony and datacom is a reality in the wireless enterprise today. Connect802 has been providing wireless VoIP design and consulting services for many years and we've watched the industry mature in the triple-play (voice-video-data) marketplace. We've also seen the dramatic problems that occur when an 802.11 Wi-Fi wireless LAN that is designed to support Web browsing, file transfer and email is used to support wireless Voice-over-IP without proper pre-deployment assessment.

Voice-over-Wireless-LAN (VoWLAN) requires a higher level of signal power than does data transfer and Web browsing. VoIP requires that the received signal be more greatly separated from environmental noise (Signal-to-Noise Ratio SNR) and from nearby interfering 802.11 transmitters (Carrier-to-Interference Ratio CIR). Connect802 can create an 802.11 Wi-Fi wireless network design that will properly support wireless VoIP / Voice-over-Wireless-LAN (VoWLAN).

Are You Planning For Wireless VoiP?

Talk to the RF engineering team at Connect802 before you start your implementation of a Voice-over-WLAN (wireless VoIP) phone system - We've Got You Covered. Connect802 designs wireless VoIP systems to support Cisco, Avaya, SpectraLink, and the latest generation of multi-mode Wi-Fi/Cellular handsets. A proper design is the only way to assure the highest quality voice communications in an enterprise-class VoIP system. Call us to discuss how we can help.

Unlike some casual web surfing or checking email, your network infrastructure is going to have to provide a high level of reliability and performance to give you crisp, clear, and NOT DROPPED wireless IP phone calls. We can help you with your VoWLAN (Voice over Wireless LAN) design and Wi-Fi network to support your wireless PBX system from any vendor. Plus, in today's converging wireless LAN environment, Triple Play (voice video data together) is another key reason to make sure the Wi-Fi VoIP system is ready to support more than just VoIP.

The Connect802
Antenna System Designer
An On-Line Calculator for Link Budget, Gain,
and Antenna Mounting. Try it out!

The Connect802
VoIP Bandwidth Provisioning Calculator
Will Help You Understand How Many Voice
Calls Can Be Carried On a Wi-Fi Link

Wireless VoIP can be a complete telephone solution for:

  • Warehouses
  • Retail Stores
  • Universities
  • Hotels
  • Resorts
  • Hospitals (...really; and Connect802 does Wireless Medical Telemetry Systems (WMTS) too, so we know RF and hospitals!)
  • Car dealerships
  • Mobile calls using VoWLAN technology

What Makes a Wi-Fi Different with Wireless VoIP?

802.11 radio chipsets used in wireless data devices (notebook computers and PDAs), handheld inventory scanners, and wireless VoIP handsets are essentially the same. They can all create connections with very low signal strengths and relatively low signal-to-noise ratios (i.e. noisy environments can support connectivity). The problem comes when data connections (for file transfer, email, web browsing, and similar activities) are compared to the requirements for wireless VoIP.

A wireless VoIP call requires significantly higher signal strength, and an even more significantly high signal-to-noise ratios. A typical "walk around" on-site survey for a Wi-Fi network does not assess 100% of a building's floor space because an engineer can't walk around to every corner and every part of every room.

Unlike wireless notebook computers, which are typically used in a fixed or nomadic location (on a desktop, for example), wireless VoIP handsets are typically used while a person is walking. This demands an assessment of consistent, contiguous coverage that is not possible with a design that's based solely on a walk-through of a site.

Connect802 utilizes RF CAD modeling and simulation to augment the design process, and in many cases to completely eliminate the need for an on-site engagement. You get the right design the first time, without worrying about going back to correct dead spots or weak areas in your coverage.

Connect802 will help solve the wireless data system puzzle!

The Connect802 Voice-over-Wireless-LAN Design and Consulting Services Value Proposition

Why you will choose Connect802 for your Wireless Voice-over-IP Design and Consulting Services:

Connect802 provides complete, turnkey product and service bundles (Connect EZ Turnkey Wireless LAN Bundles) that provide a complete wireless network system. When you're going to use the system for wireless Voice-over-IP we make sure that it's going to work properly. It's our capability to interface as part of your project team from initial design through equipment provisioning all the way to installation and post-installation verification that makes Connect802 a clear choice for your Wi-Fi network system design, consulting and equipment resource for Voice-over-Wireless LAN implementation.

Our design engineers will incorporate the appropriate signal strength, signal-to-noise ratio (SNR) and carrier-to-interference ratio (CIR) specifications into the 3-dimensional RF CAD model used to create your Suite Spot Predictive RF CAD Design design. This assures that the number and placement of access points and the types of antennas used will be correct and won't either under-provision or over-saturate your environment. We'll design the correct adjacent coverage cell overlap to smooth inter-cell roaming and handoff.

On-site, our RF engineers will use RF spectrum analysis equipment to evaluate the background noise and interference in your environment. We'll locate noise sources and provide a mitigation strategy, remediating our initial design as required to account for real-world influences.

After your 802.11 Wi-Fi wireless LAN is installed we'll return to your site for Post-Installation Site Verification. We'll create a "heat map" of signal coverage across your facility and confirm that everything is in accordance with the design specifications.
         
How you will decide that Connect802 provides the best solution:

When you compare our experience and our analytic rigor to the service offerings from other wireless LAN providers, we believe you'll see that using Connect802 as a trusted consulting and design resource is a natural choice.

         
Where you will see the greatest value with Connect802 Voice-over-Wireless-LAN consulting and design services:

When the network is installed and call quality is excellent and user's aren't complaining about "dead spots" or dropped calls - that's where you'll see the greatest value from your investment in professional RF design services for your wireless VoIP solution.

         
When you are ready to buy wireless VoIP consulting and design services from Connect802:

Talk to your Connect802 sales representative about your wireless Voice-over-IP VoIP requirements.

         
Connect802 is an authorized equipment and software reseller.
 An Example of How Connect802 Wireless Voice-over-IP Design Consulting Services Can Help Avoid Complaints of Poor Call Quality

Below is a discussion of how a Connect802 Connect EZ Turnkey Wireless LAN Bundle design, coupled with Connect802 wireless Voice-over-IP consulting services, can mitigate microwave oven noise and prevent complaints of poor call quality. Microwave oven noise is only one of many issues that can be addressed by Connect802's innovative applications of predictive RF CAD modeling and simulation to the wireless network design process.

   

Construction of a 3-Dimensional Building Model

Your wireless Voice-over-IP Wi-Fi network design is created based on a 3-dimensional RF CAD model as part of your Connect EZ Predictive RF CAD Design report. Not only does the 3-dimensional virtual building model allow the Connect802 engineering team to place access points and antennas for proper coverage, it also allows an in-depth analysis of noise and interference.

It should be obvious that if a wireless network design were created solely as the result of someone walking around at your site making signal strength measurements, the effect of noise and interference will be overlooked. On-site survey work should be focused on RF spectrum analysis and verification of signal characteristics - not on "testing the access point locations."

The problem is that an on-site survey performed in an effort to create a design can not take into consideration the effect of multiple access points as they're going to ultimately interact in the live network. Predictive RF CAD modeling and simulation completely address this problem. Noise, interference, and other access points can be accurately modeled and problems can be identified before the network is installed.
A 3-Dimensional RF CAD Model Is Constructed by the Connect802 RF Engineering Team
 
 

MICROWAVE OVENS INTRODUCE ENVIRONMENTAL NOISE THAT DISRUPTS WIRELESS VOICE-OVER-IP COMMUNICATION

A microwave oven (a potentially catastrophic noise source) has been placed into the RF CAD model above. The coverage prediction shows how strong the noise will be when the oven is in operation. A wireless VoIP user in the yellow or green areas (with noise greater than -80 dBm) will experience poor call quality or dropped calls. Notice that the yellow and green problem area is in a zone directly around the microwave oven.

 
   

SIGNAL-TO-NOISE RATIO DOES NOT MEET MANUFACTURER'S REQUIREMENTS FOR WIRELESS VOIP

Wireless Voice-over-IP requires not just a particular low level of noise but a specific measurement of the level of noise relative to the level of the 802.11 Wi-Fi signal. This is called the Signal-to-Noise (or Signal-to-Interference) Ratio (SNR or SIR). Wireless VoIP manufacturers typically require at least a 20 dB SNR or better for good call quality.

The predictive model shown above has determined the expected SNR on the floor relative to the AP02 access point. Notice that any area with blue or purple hue has an SNR less than the required 20 dB. Signal-to-Noise Ratio is a more accurate predictor of call quality than simply signal strength measurement alone.

 
   

CONFIGURATION CHANGE TO MITIGATE MICROWAVE OVEN NOISE AND CORRECT THE PROBLEM

Connect802 reconfigured the virtual access point AP02 and changed it from 802.11 b/g Channel 11 to Channel 1. This moves the transmitter frequency away from the frequency range most impacted by microwave oven noise.

After the configuration change the predictive model shows that the Signal-to-Noise Ratio is not only greater than 20 dB (light blue) but greater than 40 dB in most cases! (yellow and red hue).
 
 
 

SIGNAL 'SPILLOVER' OUTSIDE THE BUILDING

There are often concerns about just how visible a wireless Voice-over-IP network is to passers-by and tenants in adjacent buildings. Predictive RF CAD modeling answers these questions and provides the Connect802 engineering team with a mechanism to minimize out-of-building 'spillover'. The model above shows signal extending out through a glass face of a building to a distance of 3038 feet! This can be addressed by moving the access point to a location where it doesn't 'shine' out the window. Moving the access point in the virtual CAD model is markedly easier than moving it on the ceiling after it's been installed!

     
   
At Connect802 - We've Got You Covered!

Targeted Discussion about Wireless Voice over IP (Voice over Wireless LAN)

You'll find numerous Web references and reviews of wireless Voice over IP technology. Below are some targeted discussions to provide you with additional perspective on how a Connect802 solution can be implemented to meet your requirements.
 
Connect802's complete consulting and technology services will give you a resource to help keep your VoIP initiative on track and moving forward efficiently. We can help you achieve your business goals by designing a Wi-Fi network that is specifically intended to support wireless voice telephony and the new generation of wireless VoIP devices. Wi-Fi VoIP phone systems are becoming the rule, rather than the exception, in businesses today. Your Wi-Fi VoIP phone system will need a wireless LAN in the building to make it work, and that's where We've Got You Covered. You'll discover how our virtual site survey services, combined with our 802.11 RF engineering expertise, assure that your WiFi wireless LAN that supports your VoIP wireless phones provides proper bandwidth capacity, packet latency times, and jitter limitations.
 
Connect802 has a series of on-line tutorials called "Wi-Fi: Just the Facts" that provide tutorials for Voice-over-IP. You can read about Voice over WLAN (VoWLAN) implementation and get our expert advice about choosing VoWLAN equipment, running VoIP over a wireless LAN and field problems that Connect802 has seen related to VoIP LAN phones and their voice over WLAN counterparts. You'll learn about best practices for confirming that your environment is suitable for successfully deploying a VoWLAN system.