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<p><font size="2">Hi all,</font><br>
<br>
<font size="2">nice to read your opinions here. I just raised some thoughts about sending perhaps critical alerts via eMail to an external SMS provider... ;-)</font><br>
<font size="2">Phil, you are totally right... Now, when you say this, I remember, that we also have reached the age of GSM Modems and no longer relay on the analogue ones...</font><br>
<font size="2">I have setup this kind of redundant alerting (like you describe) for a big Datacenter (with the slow BigBrother) in y2k and at this time, the analogue/ISDN modems were the best choice.</font><br>
<font size="2">I also agree to all the arguments raised by all others commenting my eMail. Sending SMS via eMail might be sufficient enough.</font><br>
<font size="2">My intention was only to show, that there are reasons why this should not be accepted as a reliable alerting path.</font><br>
<font size="2">And, of course, even GSM Networks could fail...</font><br>
<br>
<font size="2">mit freundlichen Grüßen - Best regards<br>
Hälsningar - Met vriendelijke groeten<br>
Sincères salutations <br>
<br>
Oliver Grube<br>
EU Security&Controls Manager<br>
</font><br>
<img src="cid:10__=4EBBFEBBDFE05A9C8f9e8a93df9386@soups.com" width="16" height="16" alt="Inactive hide details for "Phil Wild" <philwild@gmail.com>"><font size="2">"Phil Wild" <philwild@gmail.com></font><br>
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<ul><b><font size="2">"Phil Wild" <philwild@gmail.com></font></b><font size="2"> </font>
<p><font size="2">2008-04-11 18:26</font>
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hobbit@hswn.dk</font></div></td></tr>
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<div align="right"><font size="2">To</font></div></td><td width="100%"><img src="cid:30__=4EBBFEBBDFE05A9C8f9e8a93df9386@soups.com" border="0" height="1" width="1" alt=""><br>
<font size="2">hobbit@hswn.dk</font></td></tr>
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<font size="2">Re: [hobbit] sms alert sample script - good solution?</font></td></tr>
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Hi Oliver,<br>
<br>
Whoops! , I just reread your message and understand your comment better now - when I first read it I didn't realise you were making comment on a solution where someone was emailing an sms through a mail gateway rather than an direct sms based soln.<br>
<br>
Sorry<br>
<br>
Phil<br>
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2008/4/12 Phil Wild <<a href="mailto:philwild@gmail.com"><u><font color="#0000FF">philwild@gmail.com</font></u></a>>:
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<ul>Hi Oliver,<br>
<br>
Have a good read of the man pages around hobbit-alert. You do not need to involve email when sending messages at all and probably the most reliable method is with an attached GSM modem. It is much faster than analogue dialing a messaging provider.<br>
<br>
We use two gsm modems attached to two independent hobbit servers in two data centres connected to two different mobile providers. We have hobbit monitoring the messaging queues and have failover in place, if a message fails to get out via one provider after a number of retries, it is transferred to the other server.<br>
<br>
We have also planned to set up a ping test via sms where one modem sms's the other but it has fallen off the bottom of our todo list as the current configuration has proven to be very stable...<br>
<br>
It would be nice though if the modem hardware was more stable, regular restarts when they hang (wavenet modems). Can't say other brands are better and the monitoring and scripting has made them reliable enough so that we don't need to replace them and start again...<br>
<br>
Your carrier may also be able to provide a status message feature where you receive back an sms once your message has entered the recipients phone (extra messaging cost and no guarantee they will read it of course but then that is what escalation is for). I am sure it would be possible to script a confirmation check and retry on the other network if you really wanted to guarantee the message got to the phone...<br>
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Cheers<br>
<br>
Phil<br>
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2008/4/11 Oliver Grube <<a href="mailto:oliver_grube@campbellsoup.com" target="_blank"><u><font color="#0000FF">oliver_grube@campbellsoup.com</font></u></a>>:<br>
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<ul><font size="2">Hello,</font><br>
<font size="2"><br>
this is just my opinion and something to thought about...</font><br>
<font size="2"><br>
I have read about SMS alerting here. I think, from a reliability point of view, this kind of alerting, is not stable enough.<br>
Your designs are based on sending an eMail to an SMS sending system.<br>
A simple question: How do you get alerts for your eMail system?<br>
We have implemented this functionality with a simple modem attached to the Hobbit system and we dial the SMS provider directly.<br>
I think, that this is a more reliable solution, if you want to do SMS Alerting.</font><br>
<font size="2"><br>
Another option is to give the important guys Blackberry or similar devices and let them read the alert via eMail.<br>
Advantage: they can access internal hobbit systems directly and confirm alerts...</font><br>
<font size="2"><br>
As I said... just some thoughts...</font><br>
<font size="2"><br>
mit freundlichen Grüßen - Best regards<br>
Hälsningar - Met vriendelijke groeten<br>
Sincères salutations <br>
<br>
Oliver Grube<br>
EU Security&Controls Manager<br>
</font><br>
<br>
<font size="2">"Benjamin P. August" <</font><a href="mailto:baugust@stanford.edu" target="_blank"><u><font size="2" color="#0000FF">baugust@stanford.edu</font></u></a><font size="2">></font><br>
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-- <br>
Tel: 0400 466 952<br>
Fax: 0433 123 226<br>
email: <a href="mailto:philwild@gmail.com"><u><font color="#0000FF">philwild@gmail.com</font></u></a> <br>
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