Source note · Setting up analog devices and ATAs on Webex Calling

On VG4xx ATA release 17.18.1a, pushing a port configuration change from Control Hub while that port is active causes the port to deregister once the configuration file is processed; the documented remedy is to push the configuration again after the port is idle.

Checked 2026-09-30

Vendor: Cisco
Product: Cisco VG4xx ATA
Subsystem: troubleshooting
Deployment: multi-tenant
Region: not restricted
Release range: IOS XE 17.18.1a
Checked: 2026-09-30

Sources

Configure your Cisco Voice Gateway VG400, VG410, or VG420 in Control Hub — Cisco · tier 2 current vendor documentation · section 'Troubleshoot VG4xx ATA deployment', known issue for release 17.18.1a

Cite this note

APA

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

BibTeX

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

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