NEC UM8000 record message NEC UM8000 record message 3051320 (TechnicalUser) (OP) 19 Dec 18 02:20 hello how can I record my transaction box messages from outside the office? I would like to have the procedure please. thank you RE: NEC UM8000 record message cayres1003 (IS/IT--Management) 19 Dec 18 13:59 provided you know the ext that owns the transaction box and have access to it - like the passcode, AND provided you have some auto attendant answering incoming calls then, call in and when the auto attendant answers, hit 9xxx (xxx is the ext number of the mailbox) and the passcode if required. Once you are in the mailbox, choose the option to leave a message and then you can enter the transaction mailbox number. Now you will be able to re-record or record the message.