Protocol

CNAM

Caller Name · Calling Name Delivery

Lab ready Full lab

Calling Name Delivery presents a display name for the calling party at the terminating set. Classic wireline dips query a CNAM/LIDB database over SS7 TCAP; VoIP and STIR/SHAKEN paths often map the same concept into SIP From/P-Asserted-Identity or verstat. Presentation and screening interact with privacy (IPR) and carrier CNAM contracts.

Tags

ss7cnamcaller-idlidbtcapprivacy

Sources

  • Telcordia/iconectiv LIDB / CNAM practices
  • ATIS calling name delivery specs
  • RFC 3325 (P-Asserted-Identity) for SIP analogs

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