Source note · PRI and TDM gateway interworking
ITU-T Q.921 is the ISDN user-network interface data link layer specification; its in-force components are the 09/97 version and Amendment 1 (06/00).
Checked 2026-09-24
- Vendor
- ITU-T
- Product
- Q.921
- Subsystem
- ISDN layer 2
- Deployment
- any
- Region
- not restricted
- Release range
- current as of 2026-09-24
- Checked
- 2026-09-24
Sources
- Q.921: ISDN user-network interface - Data link layer specification — ITU-T · tier 1 standards and regulators · Landing page title and in-force version list
Cite this note
APA
WarmTransfer. (2026, September 24). PRI and TDM gateway interworking: source note legacy-pri-tdm-q921-data-link. WarmTransfer. https://warmtransfer.net/knowledge/claims/legacy-pri-tdm-q921-data-link
BibTeX
@misc{warmtransfer-claim-legacy-pri-tdm-q921-data-link,
title = {PRI and TDM gateway interworking: source note legacy-pri-tdm-q921-data-link},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/legacy-pri-tdm-q921-data-link},
note = {Source note legacy-pri-tdm-q921-data-link, checked 2026-09-24}
}