/// <summary>
/// Builds the REFER request to initiate an attended transfer on an established call.
/// </summary>
/// <param name="target">A target dialogue representing the Transferee.</param>
/// <returns>A SIP REFER request.</returns>
private SIPRequest GetReferRequest(SIPDialogue target)
{
SIPRequest referRequest = Dialogue.GetInDialogRequest(SIPMethodsEnum.REFER);
SIPURI targetUri = target.RemoteTarget.CopyOf();
referRequest.Header.Contact = new List <SIPContactHeader> {
SIPContactHeader.GetDefaultSIPContactHeader()
};
SIPParameters replacesHeaders = new SIPParameters();
if (target.Direction == SIPCallDirection.Out)
{
replacesHeaders.Set("Replaces", SIPEscape.SIPURIParameterEscape($"{target.CallId};to-tag={target.RemoteTag};from-tag={target.LocalTag}"));
var from = new SIPUserField(target.LocalUserField.Name, target.LocalUserField.URI.CopyOf(), null);
referRequest.Header.ReferredBy = from.ToString();
}
else
{
replacesHeaders.Set("Replaces", SIPEscape.SIPURIParameterEscape($"{target.CallId};to-tag={target.RemoteTag};from-tag={target.LocalTag}"));
var from = new SIPUserField(target.RemoteUserField.Name, target.RemoteUserField.URI.CopyOf(), null);
referRequest.Header.ReferredBy = from.ToString();
}
targetUri.Headers = replacesHeaders;
var referTo = new SIPUserField(null, targetUri, null);
referRequest.Header.ReferTo = referTo.ToString();
return(referRequest);
}
public void ParamsInUserPortionURITest()
{
Console.WriteLine("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
var replaces = SIPReplacesParameter.Parse(SIPEscape.SIPURIParameterUnescape("a48484fb-ac6e00aa%4010.0.0.12%3Bfrom-tag%3D11e7a0c7ec2ab74eo0%3Bto-tag%3D1313732478"));
Assert.Equal("[email protected]", replaces.CallID);
Assert.Equal("1313732478", replaces.ToTag);
Assert.Equal("11e7a0c7ec2ab74eo0", replaces.FromTag);
Console.WriteLine("-----------------------------------------");
}
