On calls from Zoom to the SBC, the Request-URI carries the destination in E.164 for BYOC-P, while BYOP-P calls may be localized or E.164 with a maximum of 24 digits.

Checked 2026-09-24

BYOP-P calls can be in localized or E.164 format with a maximum of 24 digits.
Vendor
Zoom
Product
Zoom Phone; Zoom Contact Center
Subsystem
byoc-p-sip
Deployment
hybrid
Region
not restricted
Release range
current as of 2026-09-24
Checked
2026-09-24

Sources

Cite this note

APA

WarmTransfer. (2026, September 24). Zoom Phone routing and PSTN connectivity: source note zoom-phone-routing-outbound-ruri-format. WarmTransfer. https://warmtransfer.net/knowledge/claims/zoom-phone-routing-outbound-ruri-format

BibTeX

@misc{warmtransfer-claim-zoom-phone-routing-outbound-ruri-format,
  title  = {Zoom Phone routing and PSTN connectivity: source note zoom-phone-routing-outbound-ruri-format},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/zoom-phone-routing-outbound-ruri-format},
  note   = {Source note zoom-phone-routing-outbound-ruri-format, checked 2026-09-24}
}

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