Cisco states that the initial Webex Calling region selection cannot be changed later, that the decision should be taken early in a transition to avoid excessive signalling round-trip delay, and recommends selecting the Webex Calling instance that provides the lowest signalling round-trip times for the largest number of users in the deployment.

Checked 2026-09-16

Vendor
Cisco
Product
Webex Calling
Subsystem
platform
Deployment
not restricted
Region
not restricted
Release range
not restricted
Checked
2026-09-16

Sources

Cite this note

APA

WarmTransfer. (2026, September 16). Webex Calling architecture and deployment models: source note wxarch-region-choice-is-permanent-and-latency-driven. WarmTransfer. https://warmtransfer.net/knowledge/claims/wxarch-region-choice-is-permanent-and-latency-driven

BibTeX

@misc{warmtransfer-claim-wxarch-region-choice-is-permanent-and-latency-driven,
  title  = {Webex Calling architecture and deployment models: source note wxarch-region-choice-is-permanent-and-latency-driven},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/wxarch-region-choice-is-permanent-and-latency-driven},
  note   = {Source note wxarch-region-choice-is-permanent-and-latency-driven, checked 2026-09-16}
}

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