Who do you recommend for two-way SMS in Australia?

I was talking to a colleague about SMS text messaging capabilities the other day — and in particular, discussing the power and potential of a two-way text service. Even in today’s hyper-connected app world, there’s nothing more universal than a text message.

The colleague is keen — but they’re based in Australia. Which is a problem — as I don’t know many providers in that region.

Do you have any recommendations for a firm that can provide an SMS “inbox” service in Australia? Ideally they’d offer a web-based console to send and receive text messages but if not, I suppose we could just get one built.

I suppose they’d probably need a “long” number to send/receive from as well — since they’ll want the widest possible compatibility. But they’re open to ideas.

Any suggestions?