Don't know how much they are to hire but I have an Inmarsat Isatphone pro that I don't need if you would consider buying used.
Less than 1 hour total talk time , complete with mobile cradle and mobile antenna (magnetic) .
you just need to grab a Prepaid simcard from any sat phone provider , e.g. Pivotel etc.
I moved to a Iridium 9555 simply because I can use my regular Telstra GSM simcard in it & dont have to worry about remembering to top up the inmarsat prepaid sim.
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