sean finney on 23 Feb 2010 22:24:25 -0800

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Re: [PLUG] How to Signal from a Modem?


On Tue, Feb 23, 2010 at 08:55:30PM -0500, James Barrett wrote:
> I've considered using a cell phone for a home security system that
> I've been designing for a few years (just designing, never implemented
> it...).  I have an old Nokia 'candybar-style' phone which can link up
> to a computer via RS232 (serial).  When I was doing the research,
> there was an open source program which could interface with nokia
> handhelds and send/receive text messages.  It could be a bit costly,
> maybe $35 per month for the barest mobile phone service with unlimited
> text, although that is comparable to the cost of a landline.

if it's only used to send text messages, it's probably better to get one
of those pre-paid simcards with no subscription.  we have a monitoring
system set up with with nagios and gammu and some bottom-of-the-barrel
nokia phone which sends out sms's for the more critical alerts. i
don't think we pay much more than $50 a year for sim card recharges.


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