Source note · PRI and TDM gateway interworking
ECMA-143 (4th edition, December 2001) specifies QSIG circuit-switched call control at the Q reference point between PINXs and corresponds to ISO/IEC 11572.
Checked 2026-09-24
- Vendor
- Ecma International
- Product
- ECMA-143
- Subsystem
- QSIG basic call
- Deployment
- on-premises
- Region
- not restricted
- Release range
- 4th edition
- Checked
- 2026-09-24
Sources
- ECMA-143: Private Integrated Services Network (PISN) - Circuit Mode Bearer Services - Inter-Exchange Signalling Procedures and Protocol (QSIG-BC) — Ecma International · tier 1 standards and regulators · Standard landing page description
Cite this note
APA
WarmTransfer. (2026, September 24). PRI and TDM gateway interworking: source note legacy-pri-tdm-ecma143-qsig. WarmTransfer. https://warmtransfer.net/knowledge/claims/legacy-pri-tdm-ecma143-qsig
BibTeX
@misc{warmtransfer-claim-legacy-pri-tdm-ecma143-qsig,
title = {PRI and TDM gateway interworking: source note legacy-pri-tdm-ecma143-qsig},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/legacy-pri-tdm-ecma143-qsig},
note = {Source note legacy-pri-tdm-ecma143-qsig, checked 2026-09-24}
}