What was found
CREW REPORTED EMERGENCY BUTTON ON AFT FLT ATTENDANT HANDSET WASN'T WORKING PROPERLY. MTX WAS DISPATCHED TO THE A/C TO TROUBLESHOOT. MTX PERFORMED OPS CHECKS OF THE AFT FLT ATTENDANT HANDSET IAW EMB AMM 44-13-00, NO FAULTS WERE FOUND, AND OPS CHECK GOOD. ACFT WAS RELEASED BACK INTO SERVICE.