MultiTXT is a service Vodafone provides which allows you to send and receive TXTs to your staff or customers from a web browser, email, or a mobile device.
The Vodafone multiTXT webpage has more FAQs as well as an extensive user guide to help you use this service.
You are also welcome to contact AskOtago for further information or assistance:
Freephone 0800 80 80 98 (within New Zealand)
Tel +64 3 479 7000
Email askotago.it@otago.ac.nz