public static async Task <bool> SipUdpPingAsync(this ISipClient sipClient, string targetHost, int port)
{
SipDialogue sd = sipClient.GetNewDialogue(RequestMethods.Options);
await sd.StartDialogueFlow();
return(true);
}
public static async Task RegisterAsync(this ISipClient sipClient)
{
SipDialogue sd = sipClient.GetNewDialogue(RequestMethods.Register);
await sd.StartDialogueFlow();
}