public void GenerateForwardedRequest(SipMessageWriter writer, SipMessageReader reader, ArraySegment<byte> content, ConnectionAddresses fromConnectionAddress, int serverTransactionId) { //int? tag = HexEncoding.ParseHex8(reader.To.Tag); //var dialog2 = trunk.GetExternalDialog(tag); //if (dialog2 != null) //{ // this.tag = tag.Value; // //this.dialog1 = dialog1; // this.dialog2 = dialog2; //} Dialog dialog2 = null; if (HexEncoding.TryParseHex8(reader.To.Tag, out tag)) dialog2 = trunk.GetDialog2(tag); else tag = DialogManager.NewLocalTag(); dialog1 = new Dialog(reader, tag, fromConnectionAddress); trunk.AddDialog1(tag, dialog1); writer.WriteRequestLine(reader.Method, trunk.Transport.ToScheme(), reader.To.AddrSpec.User, trunk.Domain); //var msReceivedCid = fromConnectionAddress.ToLowerHexChars(serverTransactionId); //writer.WriteVia(trunk.ConnectionAddresses.Transport, trunk.ConnectionAddresses.LocalEndPoint, TransactionId, msReceivedCid); writer.WriteVia(trunk.ConnectionAddresses.Transport, trunk.ConnectionAddresses.LocalEndPoint, TransactionId); for (int i = 0; i < reader.Count.HeaderCount; i++) { switch (reader.Headers[i].HeaderName) { case HeaderNames.MaxForwards: writer.WriteMaxForwards((reader.MaxForwards == int.MinValue) ? 69 : reader.MaxForwards - 1); break; case HeaderNames.Contact: writer.WriteContact(trunk.LocalEndPoint, trunk.Transport, reader.Contact[0].SipInstance); break; case HeaderNames.Via: via = reader.Headers[i].Value.DeepCopy(); break; case HeaderNames.To: writer.WriteTo2(reader.To.AddrSpec.User, trunk.Domain, (dialog2 != null) ? dialog2.RemoteTag : ByteArrayPart.Invalid); break; case HeaderNames.From: writer.WriteFrom(trunk.Uri, tag); break; case HeaderNames.CSeq: writer.WriteCseq(trunk.GetCSeq(reader.CSeq.Method, reader.CallId, reader.CSeq.Value), reader.CSeq.Method); break; case HeaderNames.Authorization: case HeaderNames.ContentLength: case HeaderNames.Extension: break; default: writer.WriteHeader(reader, i); break; } } WriteAuthorization(writer, reader.Method, content); if (reader.Method == Methods.Invitem && reader.ContentType.Subtype.Equals(sdp)) // temp content = Sip.Sdp.Helpers.CutCandidates(content); writer.WriteContentLength(content.Count); writer.WriteCRLF(); writer.Write(content); }