[folivier]

Spot has a $500 satellite phone that is free with rebate and a yearly contract of $65/month.  

http://www.findmespot.com/SummerSavings/...rFreePhone

Sorry Chester, for some reason it doesn't have coverage in Mexico.  Or Central America?  

[MrE]

96% OR BETTER PROBABILITY OF SUCCESSFULLY SENDING A SINGLE MESSAGE WITHIN 20 MINUTES.

REDUCED COVERAGE AVAILABLE WITHIN A 20 MINUTE PERIOD.

[Chester Stone]

That's OK Forest. I use an internet phone in Mexico and my Verizon cell when in the US.