# ISO/IEC 14843:1996 — Withdrawn and superseded ISO standards

For ISO/IEC 14843:1996, item title is Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Inter-exchange signalling protocol — Call offer supplementary service; status code is 9599; successor is ISO/IEC 14843:2003; withdrawn / published date is 1996-09-19, recorded from its source on 2026-08-05.

- **Identifier:** ISO/IEC 14843:1996 _(verified: appears in the quote below)_
- **Item title:** Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Inter-exchange signalling protocol — Call offer supplementary service _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/IEC 14843:2003
- **Withdrawn / published date:** 1996-09-19 _(verified: appears in the quote below)_

## What the source says

> 25740,IS,,ISO/IEC 14843:1996,Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Inter-exchange signalling protocol — Call offer supplementary service,Technologies de l'information — Télécommunications et échange d'information entre systèmes — Réseau privé à intégration de services — Protocole de signalisation d'interéchange — Service supplémentaire d'offre d'appel,1996-09-19,1,['33.040.35'],ISO/IEC JTC 1/SC 6,9599,,[36846],['en'],35,<p>Describes the signalling protocol for the support of the Call Offer supplementary service (SS-CO) at the Q reference point between Private Integrated Services Network Exchanges (PINXs) c

## Source

- https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv

Last verified: 2026-08-05. Review by: 2027-02-01.
Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).