Couldn't able to place calls properly using Create() and Dial ()

[mashaikx13]

On answering the channel when a call enters the Stasis App I create a new channel for "SIP/8312453028" with app "test" and then place the dial function to initiate the call with newly created channel id. I get the call on SIP/8312453028, then I answered but there are no media between both clients.
Workflow is given below:

orig := &ari.ChannelCreateRequest{Endpoint: "SIP/8312453028", App: "test"}
channel, err1 := h.Create(*orig)
if err1 != nil {
log.Error("Failed to Create Channel", "error", err1)
return
}
err2 := channel.Dial(channel.ID(), 30)
if err2 != nil {
log.Error("Failed to Dial Call", "error", err2)
return
}

return

The console error I received:

EROR[07-15|16:04:20] failed to answer call error="Non-2XX response: 412 Precondition Failed"

It would be helpful if you guide more about it. Thanks.

[arudyavsky]

I have the same problem. Can anyone provide a complete basic call example? Eg, call from 1000 to 1001. Thanks.

[Ulexus]

Using Create-Dial is tricky, because many things are not done for you. I recommend using Originate instead. If you need a two-stage (create, attach a bunch of listeners, then execute), use StageOriginate.

Regardless, the log error in the above example doesn't correspond with the code. It reads "failed to answer call", but there is no corresponding code. One cannot answer a dialed channel.