47 CFR §64.6050
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
No Provider shall prohibit or prevent completion of a Collect Calling IPCS communication or decline to establish or otherwise degrade any Collect Calling IPCS communication solely for the reason that it lacks a billing relationship with the called party's communications service provider unless the Provider offers Debit Calling, Prepaid Calling, or Prepaid Collect Calling for IPCS communications.