On an ATA 191, a steady green Power LED means the system booted and is ready, a steady green Phone LED means the port is on-hook, and a Phone LED that flashes fast three times signals a registration failure.

Checked 2026-09-30

Vendor
Cisco
Product
Cisco ATA 191 Multiplatform
Subsystem
hardware
Deployment
multi-tenant
Region
not restricted
Release range
current as of 2026-09-30
Checked
2026-09-30

Sources

Cite this note

APA

WarmTransfer. (2026, September 30). Setting up analog devices and ATAs on Webex Calling: source note webex-calling-analog-ata-setup-ata-leds-191. WarmTransfer. https://warmtransfer.net/knowledge/claims/webex-calling-analog-ata-setup-ata-leds-191

BibTeX

@misc{warmtransfer-claim-webex-calling-analog-ata-setup-ata-leds-191,
  title  = {Setting up analog devices and ATAs on Webex Calling: source note webex-calling-analog-ata-setup-ata-leds-191},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/webex-calling-analog-ata-setup-ata-leds-191},
  note   = {Source note webex-calling-analog-ata-setup-ata-leds-191, checked 2026-09-30}
}

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