wrich075 Store LINGO ACTIVE VOICE MODEL #AV1400. This was received in a lot of working out of service phone systems, it is untested. It is missing the battery compartment cover and the power cord. It also has a small dent on the corner by the battery compartment. It has a sticker on the front that says for NEC Electra Professional Level 1,it is unknown if it will work on any other system.