Panasonic, Cordless handset, models:

KX-HNH100E	Operating Instructions Manual
KX-PD603DL	Quick Reference Manual
KX-TGA640	Installation Manual
KX-TGA681FX	Installation Manual
KX-TGA721EX	Installation Manual
KX-TGA731FX	Installation Manual
KX-TGA840FX	Installation Manual
KX-TGDA20	Installation Manual
KX-TGJA30EX	Installation Manual