I'm trying to develop an IMS application server using a RestComm SipServlet.
Initially my aim is just to insert the AS in the call flow without doing anything special.
The application Server has just to doStuff and forward initial invite. The problem is that the sip stack by RestComm does not remove the Route from the Invite addind it to the route header therefor the invite is routed to the AS again generating a loop. When I try to edit the SipRequest removing Route Header the AS answer with a 500 due to the fact that I can't modify system header.
Here a snippet of the code
@Override
protected final void doInvite(SipServletRequest request)
throws ServletException, IOException {
//DO STUFF
System.out.println("RECEIVED AN INVITE");
// These lines generate a 500
// request.removeHeader("route");
// request.removeHeader("route");
ProxyImpl p = (ProxyImpl) request.getProxy(true);
p.setRecordRoute(false);
p.setSupervised(true);
p.setParallel(true);
p.proxyTo(request.getRequestURI());
p.startProxy();
}
I'm going crazy :/ Hope someone can give me some suggestions...
I am also new to Sip Servlets but when I was reading documentation I encountered on this info:
"A route modifier, which consists of one of the following strings: ROUTE, ROUTE_BACK or NO_ROUTE. The route modifier is used in conjunction with the route information to route a request externally." related to mobicents-dar.properties.
Maybe it helps.