Symptom
When overriding the SIP response code sent in reply due to triggering Call Admission Control on CUBE, These three commands on the dial-peer will successfully reply to the sender with the override message of "486 Busy Here":
voice-class sip error-code-override max-conn failure 486
voice-class sip error-code-override mem failure 486
voice-class sip error-code-override cpu failure 486
When testing with "error-code-override call spike failure 486" configured below the CUBE responds with a "503 Service Unavailable":
voice-class sip error-code-override call spike failure 486
Conditions
Call Admission Control configured on CUBE dial-peers running 16.9.4 and 16.9.5:
voice-class sip error-code-override call spike failure 486
It has also been confirmed that the global "voice service voip" settings are also affected, not just the dial-peer.
Workaround
No known workaround
Further Problem Description
Reproduced in customer and lab environment
