https://help.myob.com/wiki/x/mS6EAQ
Accountants Enterprise only
Use Maintenance > Address/Phone to set up and maintain phone numbers and other address details.
There are two sub-menus:
Address type
Phone number and email address.
Address/Phone
(Practice Manager) Currency
Documents
Employee
Internal
(Practice Manager) Ledger maintenance
(Practice Manager) Miscellaneous
Security
(Practice Manager) Time setup