PLEASE NOTE: AASTRA 57i PHONE NOT INCLUDED - ONLY ON LISTING FOR REFERENCE OF HOW THE EXPANSION MODULE LOOKS LIKE WHEN ATTACHED TO A SUITABLE PHONE.

M670i 36-Key expansion module for the Mitel Aastra range of phones.

Was used on the 6757i models but fits other models.

Does not include the screws as the original screws that were supplied are so soft, they cannot be used twice.

Please check compatibility before purchase.