Cisco Wireless IP Phone 8821 and 8821-EX Administration Guide for Cisco Unified Communications Manager - Troubleshooting

Publisher

Cisco Systems

URL

https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cuipph/8821/english/adminguide/w88x_b_wireless-8821-8821ex-admin-guide/w88x_b_wireless-8821-8821ex-admin-guide_chapter_01001.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 8821 troubleshooting guidance says the next access point should have an RSSI of -67 dBm or greater for the phone to roam successfully. in context
• Cisco's 8821 troubleshooting guidance says SNR should be 25 dB or higher for acceptable voice quality. in context

Cite this source record

APA

WarmTransfer. (2026, September 25). Cisco Wireless IP Phone 8821 and 8821-EX Administration Guide for Cisco Unified Communications Manager - Troubleshooting. WarmTransfer. https://warmtransfer.net/knowledge/sources/cisco-8821-admin-troubleshooting

BibTeX

@misc{warmtransfer-cisco-8821-admin-troubleshooting,
  title  = {Cisco Wireless IP Phone 8821 and 8821-EX Administration Guide for Cisco Unified Communications Manager - Troubleshooting},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/sources/cisco-8821-admin-troubleshooting},
  note   = {Cisco Systems, accessed 2026-09-25}
}