SIP/2.0 486 Busy Here
From Kolmisoft Wiki
Jump to navigationJump to search
This response indicates that the callee was contacted but that their system is unable to take additional calls.
The SIP gateway generates this response when the called party is busy.
Upon receiving this response, the gateway initiates a graceful call disconnect and clears the call.
Solution
In Provider's details enter username into field Fromuser.
Check also:
