o3 = s:option(Value, "trm_iface", translate("Uplink / Trigger interface"),
translate("Name of the uplink interface that triggers travelmate processing in 'manual' mode."))
o3.datatype = "and(uciname,rangelength(3,15))"
-o3.default = "trm_wwan"
+o3.default = trmiface
o3.rmempty = false
o4 = s:option(Value, "trm_triggerdelay", translate("Trigger delay"),