> > > At the moment I'm testing this out: poweron, register, send message > > > to self, receive own message, wait a few seconds and pending mesages > > > come in, powerdown... seems to achieve the aim, but not a perfect > > > solution (some carriers may not allow message to self, wasting power > > > sending extra messages, who pays for them, cell module doesn't appear > to know it's own number etc). > > > > I'm not sure I've EVERY encountered a carrier that doesn't allow one > > to send a text to themselves, don't see why that would be a special cas= e. > > Obviously you're sending the text, so you'd pay for it? >=20 > I checked again and you may be right, the carrier I thought didn't allow = it does > in fact allow text to self. Yes the sender of the text would have to pay = for > these. In this case if the device sent a text to self once every powerup = time > (10 minutes) that would be 6 x 24 x 30 =3D 4320 text's per month... a hig= h > number compared to the handful of texts per day or month the user would > typically send to the device. A further complication is that it seems > most/some carriers don't program the phone number into the SIM card, that > is to say the modem can't find out what it's own number is. That would be > kind of a hassle with this project as there's not an appropriate user int= erface > to program a number in easily. Maybe the solution is to get a Huawei Mifi dongle from Amazon (they sell th= em unlocked) and use that for sending and receiving texts. Mine certainly d= eals with texts. --=20 Scanned by iCritical. --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .