Source note · Setting up analog devices and ATAs on Webex Calling
For a workspace or user on a VG4xx ATA port to register successfully, its extension must contain at least 4 digits, whether it is extension-only or extension plus PSTN number.
Checked 2026-09-30
- Vendor
- Cisco
- Product
- Webex Calling
- Subsystem
- devices
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- VG4xx ATA firmware 17.18.1a as documented
- 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 limitations, item 1
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-ext-min-4-digits. WarmTransfer. https://warmtransfer.net/knowledge/claims/webex-calling-analog-ata-setup-vg-ext-min-4-digits
BibTeX
@misc{warmtransfer-claim-webex-calling-analog-ata-setup-vg-ext-min-4-digits,
title = {Setting up analog devices and ATAs on Webex Calling: source note webex-calling-analog-ata-setup-vg-ext-min-4-digits},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/webex-calling-analog-ata-setup-vg-ext-min-4-digits},
note = {Source note webex-calling-analog-ata-setup-vg-ext-min-4-digits, checked 2026-09-30}
}