1) Yes, I know you get it!
Just wanted anyone else reading this thread to be clear, that these real-world results posted about here are not just typical, but also exactly what the system designs specify...(which is different than how some interpret the marketing/advertising...)
Whether handheld sat phone, or IridiumGo, etc...the speeds are VERY SLOW!!!
2) As to these specific questions....see here, in red...
Originally Posted by carstenb
I do want a phone with a DSC emergency button.
Sorry about not being clear up front!
NONE of these "phones" have any DSC emergency button!
(and Evans is correct, only INMARSAT-C and INMARSAT-Mini-C terminals have "distress" buttons, as standard....as well as the Fleet 77 systems, having this as an option....and rumor is that INMARSAT is in the process of changing their FleetBroadband system specs/criteria, and submitting that for GMDSS certification, and after that, them the FB250 and FB500 should also be available with a "distress" button...)
Sorry, I misunderstood your original question:
I assumed that you just wanted to be able to simply dial-up an RCC via the phone, which any sat phone can be programmed to do...
And, yes....the Iridium Extreme does have such a button (it's called the "SOS" button), that you can program to dial an RCC or other such emergency operations center...or some service providers offer an 'in-house" emergency center...
Here is a short video, showing the Iridium Extreme's "SOS" button..
We want it ot be able to :
1 - have a dedicated SOS/emergency button
So back to my original question
Iridium or Immarsat and why?
Iridium 9555 or 9575 Extreme...(with a external antenna...)
'Cause they work!
(and since you want an handheld sat phone, with worldwide coverage, using it from your sailboat, the Iridium phones are the only ones that will work well for you....see my post above regarding INMARSAT iSatPhone...)
How do I get away from minutes expiring? Is postpaid the only way to go?
As, I wrote earlier....yes, post-paid is the way to go, if you require that you never "leave minutes to expire", but also as I wrote earlier, you may find that one of the pre-paid plans to work for you....
Please have a look at the Iridium site for more details and referrals to Iridium service providers, who may have some "deal" on plans and/or airtime...
3) Bottom line:
The answer is still the same....
I hope this helps..