Voice Over Wireless LAN (VoWLAN) Troubleshooting Guide - Site Survey and RF Design Validation

Publisher

Cisco Systems

URL

https://www.cisco.com/c/en/us/td/docs/wireless/technology/vowlan/troubleshooting/vowlan_troubleshoot/8_Site_Survey_RF_Design_Valid.html

Published

unknown

Updated

unknown

Accessed

2026-09-25

HTTP status

200

License

Cisco documentation; all rights reserved; no-redistribution; short excerpts and locators only

Source notes citing this source

• Cisco's VoWLAN troubleshooting guide gives -67 dBm as the optimal VoWLAN cell-edge signal. in context
• Cisco's VoWLAN guide calls for at least 20 percent cell overlap at 2.4 GHz and 15 to 20 percent at 5 GHz between access points on different channels. in context
• Cisco's VoWLAN guide says overall channel utilization should be less than 50 percent. in context
• Cisco's VoWLAN guide says packet loss should stay under 1 percent and jitter under 100 ms. in context
• Cisco's VoWLAN guide says WCS predictive heat maps must not be used as a pre- or post-deployment site survey tool, and recommends physical walk-through measurement with survey and spectrum tools. in context
• Cisco's VoWLAN guide says the noise floor should not exceed -92 dBm so that a -67 dBm cell edge yields a 25 dB SNR. in context
• Cisco's VoWLAN guide says retransmissions should be kept under 20 percent. in context

Cite this source record

APA

WarmTransfer. (2026, September 25). Voice Over Wireless LAN (VoWLAN) Troubleshooting Guide - Site Survey and RF Design Validation. WarmTransfer. https://warmtransfer.net/knowledge/sources/cisco-vowlan-tsg-site-survey-rf

BibTeX

@misc{warmtransfer-cisco-vowlan-tsg-site-survey-rf,
  title  = {Voice Over Wireless LAN (VoWLAN) Troubleshooting Guide - Site Survey and RF Design Validation},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/sources/cisco-vowlan-tsg-site-survey-rf},
  note   = {Cisco Systems, accessed 2026-09-25}
}