Cisco states that the P-Charge-Info header cannot be included when no regular non-toll-free number is available, so the header may be absent even when support is enabled, and that PSTN providers cannot rely solely on it and must still consider the P-Asserted-Identity or Diversion header.

Checked 2026-09-15

You can’t include the P-Charge-Info header if there is no regular (non–toll-free) number available. As a result, the header may not always be present even when support is enabled.
Vendor
Cisco
Product
Webex Calling
Subsystem
Trunks
Deployment
not restricted
Region
not restricted
Release range
not restricted
Checked
2026-09-15

Sources

Cite this note

APA

WarmTransfer. (2026, September 15). Trunks route groups and dial plans in Control Hub: source note wxtrk-p-charge-info-is-not-guaranteed-to-be-present. WarmTransfer. https://warmtransfer.net/knowledge/claims/wxtrk-p-charge-info-is-not-guaranteed-to-be-present

BibTeX

@misc{warmtransfer-claim-wxtrk-p-charge-info-is-not-guaranteed-to-be-present,
  title  = {Trunks route groups and dial plans in Control Hub: source note wxtrk-p-charge-info-is-not-guaranteed-to-be-present},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/wxtrk-p-charge-info-is-not-guaranteed-to-be-present},
  note   = {Source note wxtrk-p-charge-info-is-not-guaranteed-to-be-present, checked 2026-09-15}
}

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