Re: [pope] Opinions on the best cell phone for BASE...
Hi Chris,
the major problem you will have is that most of the world (basically ALL of the world except Japan and the US) is applying the GSM-standard (GLOBAL Standard for Mobile communications: T-Mobile and cingular in the US are just building up nationwide networks, but because the size of the US and being about 15 years late, it's not finished yet.)
http://www.gsmworld.com/index.shtml If you intend to leave the US, it's the best choice to have a tri-band (850, 1800 and 1900 MHz) GSM phone. From my own experience, it will serve you ALL over Europe, especially in the Alps, and all over Africa and Latin America. I know Russia and the Eastern European countries are covered, but international roaming there is VERY, and I mean VERY expensive. I had my phone with me when I came over in October for BD,and it worked fine in CO, not at all in WV and fine again in ID. So for the US, you better check with the operators whether you primary jumping/living/working area is covered.
Basically, you can insert any SIM into any GSM phone, except if you get a highly sponsored plan from an operator that will give you a phone with a SIM-lock. There were already some hints on how to unlock it in this thread. All *new* GSM tribands will have SMS, most will have cameras nowadays (with differing quality) and most will also have the capability to send MMS (Voice, Foto/Video and Text combined).
Now the EASE of switching SIMs and the resistance to outside conditions is somewhat on the two different ends of one stick: I have two "waterproof" outdoor phone (the Siemens ME45 and the Siemens M65, and YES) and opening both and changing the SIM is a hassle because of the tight closing mechanism and the rubber which seals the battery compartment from water. I am pretty happy with both, from battery duration to reception and from resitance to water and dust to robustness and shock resistance. The new generation outdoor phone is the ME75, but I have not tested it personally.
Basically, with Voice-dialling or the call-repeat button or a quick-call button (new phone should have all three of these) you are well off for calling remote groundcrew or emergency services. (BTW, you can call the rescue with any GSM phone also WITHOUT a SIM or without international roaming, there just needs to be ANY GSM network).
You should be able to manage the intensity of the display light, from low to very bright. "Very bright" has already served me as a "torch" hiking out from an exit when it got too dark to jump (and too dark to hike). It will provide enough light for a gearcheck when it's really dark.
If you have more specific questions, you can PM me.