How to fax using asterisk manager api directly

Action: Originate
Channel: SIP/14082394529@sip
Context: 4085656565
Priority: 1
CallerID: 4085656565
MaxRetries: 0
WaitTime: 20

i am unable to fax using asterisk manager and getting this error

Response: Error
Message: Originate failed

can anyone suggest what to do.i want to directly fax using asterisk manager, with action.

Context: 4085656565

do you have a context that is named this number? probably not.

more likely context would be outgoing-calls or whatever context in extensions.conf handles outgoing calls… you should put the number as the extension not the context.