Using a Telstra Sim in an Iridium phone. - WARNING

I thought I would pass on a recent experience with my Telstra $10 per month SIM in the sat phone. I have been using it for many years without issue and just pay the $10 per month when I'm not using it.

As many users of this will know, most Telstra staff are not aware of how it works at all. Explaining it to them is like hitting your head on a brick wall.

I just got a bill from Telstra for $130 for the Sat phone number this month. The phone hasn't been on. It turns out that for some reason Telstra turned the default divert to message bank mode back on without me knowing, and someone who has the wrong number has been calling my sat phone.

I gave up trying to explain it to Telstra on the phone.

The solution is to ALWAYS put the sim back in a normal mobile phone and turn it on when you return from a trip. It will then stop charging at the sat phone rate.