Twilio呼叫处理器

I'm trying to make a call queue, I tried multiple documentations and tutorials, but none of these are what I need.

Let's say my support number is 085-SUPPORT and the destination number is 09-1918231

When a customer calls 085-SUPPORT, they need to be forwarded to 09-1918231. Meanwhile the call is being forwarded and not accepted yet, wait music from a URL needs to be played. When the call is accepted, music stops and ready to call!

If there are people waiting in the queue, they all should be hearing the music until their call is being accepted. Since only one person can be connected to 09-1918231 at the same time.

Any help would be appreciated. Would be great if such idea could be made in PHP.