SS7 -ISUP Confusion message (CFN) (26/Q.763 (09/97))
A message sent in response to any message (other than a confusion message) if the exchange does not recognize the message or detects a part of the message as being unrecognized.
| Parameter | Type | Length (octets) |
|---|---|---|
| Message type | F | 1 |
| Cause indicators | V | 3-? |
| End of optional parameters | O | 1 |