SIP

Giả lập phản hồi 183 Session Progress

Used to convey information about the progress of the call that is not otherwise classified. Often carries early media (ringback tones, announcements) via SDP.

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1 Phản hồi HTTP

Phản hồi HTTP
HTTP/1.1 183 Session Progress
Content-Type: application/json
Date: Tue, 25 Feb 2026 12:00:00 GMT

2 Kiểm tra với curl

terminal
curl -i https://httpbin.org/status/183

3 Trả về 183 Session Progress trong Framework của bạn

django
from django.http import HttpResponse


def my_view(request):
    return HttpResponse(status=183)  # Session Progress
flask
from flask import Flask

app = Flask(__name__)


@app.route("/endpoint")
def my_endpoint():
    return "", 183  # Session Progress
fastapi
from fastapi import FastAPI
from fastapi.responses import Response

app = FastAPI()


@app.get("/endpoint")
def my_endpoint():
    return Response(status_code=183)  # Session Progress
express.js
// Express.js
app.get('/endpoint', (req, res) => {
  res.sendStatus(183); // Session Progress
});
spring boot
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;

@RestController
public class MyController {

    @GetMapping("/endpoint")
    public ResponseEntity<Void> myEndpoint() {
        return ResponseEntity
            .status(183) // Session Progress
            .build();
    }
}
go net/http
package main

import "net/http"

func myHandler(w http.ResponseWriter, r *http.Request) {
    w.WriteHeader(183) // Session Progress
}
ruby on rails
class MyController < ApplicationController
  def my_action
    head :session_progress
  end
end
asp.net core
// ASP.NET Core Minimal API
app.MapGet("/endpoint", () =>
    Results.StatusCode(183) // Session Progress
);

Thêm trang giả lập SIP