Source note · ITU-T Q.850 call clearing cause values
Clause 6.2.5 names class 000 and class 001 both as normal event, and clause 6.2.7 groups both under a single heading called the Normal class, so the eight class codes carry seven names.
Checked 2026-09-15
Class (000): normal event
- Vendor
- ITU-T
- Product
- ITU-T Recommendation Q.850
- Subsystem
- Cause and location
- Deployment
- not restricted
- Region
- not restricted
- Release range
- edition 10/2018
- Checked
- 2026-09-15
Sources
- ITU-T Recommendation Q.850 (10/2018), Usage of cause and location in the Digital Subscriber Signalling System No. 1 and the Signalling System No. 7 ISDN user part — International Telecommunication Union (ITU-T) · tier 1 standards and regulators · clause 6.2.5 Cause value, class list, and clause 6.2.7.1 Normal class
Cite this note
APA
WarmTransfer. (2026, September 15). ITU-T Q.850 call clearing cause values: source note q850-two-classes-are-both-named-normal-event. WarmTransfer. https://warmtransfer.net/knowledge/claims/q850-two-classes-are-both-named-normal-event
BibTeX
@misc{warmtransfer-claim-q850-two-classes-are-both-named-normal-event,
title = {ITU-T Q.850 call clearing cause values: source note q850-two-classes-are-both-named-normal-event},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/q850-two-classes-are-both-named-normal-event},
note = {Source note q850-two-classes-are-both-named-normal-event, checked 2026-09-15}
}