Configure trunks, route groups, and dial plans for Webex Calling

Publisher

Cisco Systems, Inc. (Webex Help Center)

URL

https://help.webex.com/article/n0xb944/Configure-Trunks-Route-Groups-and-Dial-Plans-for-Cisco-Webex-Calling

Published

2026-04-28

Updated

unknown

Accessed

2026-09-04

HTTP status

200

License

Cisco proprietary documentation, all rights reserved; no-redistribution; short excerpts and locators only

Claims citing this source

• Cloud PSTN, whether Cisco Calling Plan or Cloud Connected PSTN, provides PSTN access only for Webex Calling users; calls originating from premises users cannot reach the cloud PSTN through that path. fact in context
• A per-location setting for calls to on-premises extensions lets users keep abbreviated dialling, for example 4 digits, while a site is only partially migrated, by routing unmatched extensions of a configured length between 2 and 10 digits to a chosen route group or trunk. fact in context
• A certificate-based Local Gateway must be directly reachable from the internet at a public IPv4 address, using 1-to-one static NAT if the gateway itself holds a private address. fact in context
• A route group may contain a maximum of 10 trunks. fact in context
• A Webex Calling location may hold a maximum of 100 trunks. fact in context
• A maximum of 10000 route groups may be configured for 1 enterprise customer. fact in context
• Webex Calling offers 3 PSTN connectivity options: Cisco Calling Plan, Cloud Connected PSTN from a partner provider, and premises-based PSTN through a Local Gateway. fact in context
• A route group is a group of trunks that lets Webex Calling distribute calls over multiple trunks or provide redundancy, and it may contain trunks from multiple locations. fact in context
• A trunk in Webex Calling is a connection between Webex Calling and the premises, terminated on the premises by a supported session border controller acting as a Local Gateway. fact in context

Cite this source record

APA

WarmTransfer. (2026, April 28). Configure trunks, route groups, and dial plans for Webex Calling. WarmTransfer. https://warmtransfer.net/knowledge/sources/cisco-help-n0xb944-trunks-route-groups-dial-plans

BibTeX

@misc{warmtransfer-cisco-help-n0xb944-trunks-route-groups-dial-plans,
  title  = {Configure trunks, route groups, and dial plans for Webex Calling},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/sources/cisco-help-n0xb944-trunks-route-groups-dial-plans},
  note   = {Cisco Systems, Inc. (Webex Help Center), accessed 2026-09-04}
}