object CheckCommand "sip-check" {
  import "plugin-check-command"
  command = [ PluginDir + "/check_sip" ]
  arguments = {
    "-u" = "sip:$sip_address$"
    "-H" = "$sip_address$"
    "-p" = "$sip_port$"
    "-s" = ""
  }
  vars.sip_address = "$address$"
  vars.sip_port = "5060"
}