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Wireless Networks

 

Wireless technology has evolved from a single access point in a conference room or a barcode scanning solution in a warehouse to a mission-critical part of an organization's infrastructure.
 
With more laptops currently shipping than desktop computers, wireless becomes an essential underlying technology that empowers users to work where they are the most effective.  Increasingly sophisticated and powerful technologies, such as 802.11n, have increased network capacity to such a degree that in environments such as healthcare and higher education, wireless often becomes the primary means of network connectivity.
 
SunTel can help ensure that your wireless infrastructure is flexible and robust by providing the following products and services:

Wireless planning and designWe work with you to custom design the wireless RF to your facility's unique requirements.

  • RF coverage design including
  • Wireless security design
  • Planning for future growth and applications
  • Voice over wireless LAN (VoWLAN / VoWiFi)

Installation and deployment
  • Cabling and physical installation of access points We can survey your facility to test wireless RF coverage and provide color coded documentation.
  • Labeling / asset tagging of access points and controllers
  • Configuration and testing of wireless components 
  • On-site wireless RF characterization (aka. Wireless Coverage Map)
  • Documentation of deployed system

Post-Installation
  • RF coverage validation
  • Administrator training
  • Ongoing revision as your organization changes

Unique Requirements for Voice over Wireless LAN

Voice over WLAN ( VoWiFi / VoWLAN ) is an exciting technology that empowers your staff to stay connected to customers as they roam throughout your facility and make/receive voice calls through your existing phone system.

If you’re planning on using your wireless LAN for voice communications, SunTel understands the unique RF coverage requirements and settings necessary to provide reliable, high quality voice communications.  We also bring over two decades of telephony experience to the table so we know how to make voice over WLAN work right the first time.  We can design and deploy a voice over WLAN solution for you even if your phone system does not support Voice over IP.
 

IEEE Wireless Standards
There are a number of wireless standards defined by the IEEE.  Here is an overview of a few of them:

  • 802.11b
    Provides data connection rates of up to 11Mbps.  Operates in the 2.4Ghz frequency band.  Three non-overlapping channels in North America.  Pros: Widely popular.  Cons: Limited bandwidth.  2.4Ghz band is used by many other interfering devices such as cordless phones, Bluetooth headsets, etc.  Only three non-overlapping channels in North America.
  • 802.11g
    Effectively, this is an enhancement to 802.11b.  It provides data connection rates up to 54Mbps.  Pros:  Higher throughput.  Also widely popular.  Backward compatible with 802.11b but 802.11b clients slow down performance of 802.11g clients.  Cons:  Same as  802.11b.
  • 802.11a
    Provides data connection rates of up to 54Mbps and uses the 5Ghz frequency band.  Pros:  Less saturated frequency range means less interference and better performance.  The large channel selection of 19 channels in North America results in less interference.  Often the preferred choice for VoWLAN (Voice over Wireless LAN) phones.  Cons: Less popular.  5Ghz frequency band typically has less range indoors.  Is NOT backward compatible with 802.11b/g devices and is not typically supported by most legacy laptops/devices.
  • 802.11n
    The best of all worlds.  Provides data connections rates of up to 300Mbps.  Pros:  Increases performance six-fold over previous 802.11a/b/g technology.  Dual mode access points can operate in both the 2.4Ghz and the 5.0Ghz frequency bands at the same time.  802.11n is backward compatible with 802.11a/b/g devices.  Additional enhancements permit multiple frequencies to be used simultaneously and range is extended.






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