Use CScan to test Webex Calling network quality

Publisher

Cisco Systems (Webex Help Center)

URL

https://help.webex.com/en-us/article/y27bej/Use-CScan-to-Test-Webex-Calling-Network-Quality

Published

2025-05-13

Updated

unknown

Accessed

2026-09-24

HTTP status

200

License

Cisco website terms of use; all rights reserved; no-redistribution; short excerpts and locators only

Source notes citing this source

• CScan measures packet loss and jitter (upload and download) only in its Advanced Diagnostic Test, not in the basic test. in context
• The CScan basic test measures download and upload bandwidth, round-trip latency, a traceroute, a subset of TCP ports and an estimate of concurrent calls. in context
• CScan cannot detect whether the network is wired or wireless, DHCP or DNS availability, SRV support, NTP, proxies, QoS or VPN. in context
• The CScan help article does not appear to publish numeric pass/fail thresholds for latency, jitter or loss, so a CScan result has to be compared against Cisco's separately published targets. inferred in context
• Cisco describes a CScan result as a single point-in-time estimate that does not guarantee performance at peak traffic times. in context
• Because of browser WebRTC limits, CScan validates only two UDP ports per test rather than the full Webex Calling UDP range. in context

Cite this source record

APA

WarmTransfer. (2025, May 13). Use CScan to test Webex Calling network quality. WarmTransfer. https://warmtransfer.net/knowledge/sources/cisco-help-y27bej-cscan-network-quality

BibTeX

@misc{warmtransfer-cisco-help-y27bej-cscan-network-quality,
  title  = {Use CScan to test Webex Calling network quality},
  author = {{WarmTransfer}},
  year   = {2025},
  url    = {https://warmtransfer.net/knowledge/sources/cisco-help-y27bej-cscan-network-quality},
  note   = {Cisco Systems (Webex Help Center), accessed 2026-09-24}
}