Aastra, Telephone Accessories, models:

AIDE MEMOIRE M7455	Manual Utilisateur
ETIQUETTE MEMOIRE M I740N	(French) Schematic Diagram Schematic Diagram
MBU 400	Admin Manual Manual
MEMO MESSAGERIE VOCAL M7475	Mémo De L'Utilisateur
Meridian 522	Specifications
Meridian 622	Specifications Installation Instructions Manual
RS II	User Manual
Ring Selector	User Manual