创建回调配置

https://xxxxxx/v1/callback/set?sdkappid=88888888&identifier=admin&usersig=xxx&random=99999999&contenttype=json

{
    "address":"http://www.example.com/callback",
    "actions": [
        "call_busy", 
        "normal_end",
        "caller_start_call",
        "invite_user",
        "callee_reject_call"
    ]
}

{
    "errorCode": 0,
    "errorMessage": "Success",
    "requestId": "a1d8543a9b1daef5d0f0c21517a4bc0a",
    "data": "http://www.example.com/callback"
}