multiple call inbound

[andreameneguzzoinfol]

Hello everyone,

I'm working on handling multiple incoming calls. I'm making good progress, but I’m facing an issue:
When the second call comes in, the PBX replies with "busy now", it rings for a split second (almost 0), and then the call gets answered.

It seems like the problem happens when I call AcceptCall() and send the Ringing response. The PBX appears to return a busy tone during the ringing phase.
uas.Progress(SIPResponseStatusCodesEnum.Trying, null, null, null, null); uas.Progress(SIPResponseStatusCodesEnum.Ringing, null, null, null, null);

Has anyone solved this?
thanks

update:
i have tried to create a new acceptcallimmediately and use SIPResponseStatusCodesEnum.Ok and now it doesn't have busy tone or ringing.
is it possible to integrate it in this repo?

[sipsorcery]

When you say "second call comes in" do you mean to the application you are developing? If so could you povide a code snippet?

[andreameneguzzoinfol]

When you say "second call comes in" do you mean to the application you are developing? If so could you povide a code snippet?

yes when i receive the second call (to the same internal)
userAgent.OnIncomingCall += (ua, req) =>
this call:AcceptCallImmediately it was AcceptCall
i have created a new method call immediately
var uas = session.UserAgent.AcceptCallImmediately(req, true);

when i call acceptcall the pbx say the internal was occupied and start ringing.

[sipsorcery]

It's a bit hard to tell given the small amount of code but if you are attempting to use a single SIPUserAgent instance to handle multiple incoming it's not supported, or at least not designd for it. Instead you should create a new SIPUserAgent instance for each call you want to process.

If you only want to have a single SIPUserAgent you can simply reject any incoming calls when the agent is already in a call. Even in that case it's recommended to create a new instance for each new call.

See this example for a rough idea of what I'm talking about.