On Wed, 2008-02-20 at 21:01 -0800, Nick Stinemates wrote: > > Do you need to receive SMS? If you need to receive SMS, you will need to > > host your own GSM device or modem so that people can send you SMS. > > > > If not, you can just use internet SMS gateways like clickatell to do the > > work, and post to them by HTTP, XML or email. The cost is about 6-8 cents > > per SMS. There are cheaper services, but not always reliable. If you need to > > host your own GSM device, you can use software like http://www.kannel.org > > (GPL Open Source) or http://www.visualgsm.com. > > The thing with SMS is volume. Most commercial (bulk SMS) service providers do provide a return path at a price, but this can get really expensive especially at low volumes. What you need to do is ask yourself whether you are going to do high volume SMS or not, and look at when do the commercial providers become more economical? What a lot of people do, is sign up for an account and end up sending only 50 or so SMS a month, which is silly, when for the same price as a month or two's subscription, you could buy your own GSM modem and a prepaid SIM card and do it for half the price yourself. --Paul
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