The durable NEC AT-60 (BK) TEL Desktop Phone BE120654 has a Message Waiting Lamp Support with Handset volume control [SW], 3 one-touch buttons, Wall mountable and  No battery required, 

Use for Behind PBX ONLY – doe’s NOT support PSTN/POTS = Analog Phone Lines

Display:                                                No

Color:                                                    Black

PSTN:                                                    No (Use for Behind PBX ONLY)

Dialing Method:                               DTMF

Message Waiting Lamp:                Yes

One Touch Key:                                 3 buttons

Speakerphone:                                 No

Redial Key:                                          No

Flash Key:                                            No

Speaker Key:                                      No

Hold Key:                                             No

Hook Switch:                                      Electromagnetic

Receiver Volume:                            Yes

Battery:                                                Not Required

Wall Mount:                                       Yes

Branch Connect:                               No

Music on Hold By:                            N/A

Dimension                                           2.6 Inches (W) x 6.26 inches (D) x 6.22 (H)  Inches.

Weight                                                 1.103 Lbs.

Communications Platform:          SV9500, SV9300, SV9100, SL2100

NEW IN THE BOX