Cause 127 interworking unspecified indicates interworking with a network that does not provide causes for its actions, so the precise cause cannot be ascertained.

Checked 2026-09-15

This cause indicates that there has been interworking with a network which does not provide causes for actions it takes. Thus, the precise cause for a message which is being sent cannot be ascertained.
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

Cite this note

APA

WarmTransfer. (2026, September 15). ITU-T Q.850 call clearing cause values: source note q850-cause-127-means-no-cause-was-available. WarmTransfer. https://warmtransfer.net/knowledge/claims/q850-cause-127-means-no-cause-was-available

BibTeX

@misc{warmtransfer-claim-q850-cause-127-means-no-cause-was-available,
  title  = {ITU-T Q.850 call clearing cause values: source note q850-cause-127-means-no-cause-was-available},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/q850-cause-127-means-no-cause-was-available},
  note   = {Source note q850-cause-127-means-no-cause-was-available, checked 2026-09-15}
}

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