apply Service "sip" {
  import "service-1minhigh"
  check_command = "sip-check"
  vars.sip_address = host.vars.externip
  assign where host.vars.servertype == "sips"
}

apply Service "sip" {
  import "service-1minhigh"
  check_command = "sip-check"
  vars.sip_address = host.vars.externip
  assign where host.vars.checksip == "1"
}