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Forum Index : Microcontroller and PC projects : Need an auto-dialer....
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Grogster Admin Group  Joined: 31/12/2012 Location: New ZealandPosts: 9938 |
Hi all.  Does anyone know where I can get a reasonably priced auto-dialer unit? They are not that common now, and in some cases illegal, as there were a whole lot of phone-scams being run by them not that long ago. However, in my case, I have a legitimate reason to need one. 1) Push a button 2) Auto-dialer dials after-hours emergency help staff member 3) Plays pre-recorded message stating that location X needs extra help. It's the way places seem to be doing things now, in order to cut down on wage costs by having more then one person on duty. I'd also be very interested in any kind app that could simply be installed on the staff cellphone that would do the same thing - touch a "Button" on the app, and it would auto-dial the A/H support person. "Why doesn't the on-duty person just call the A/H person themselves?" Good question, but management want it done this way - perhaps for reasons of privacy of the A/H help number or location or something. In any event, they want it button-driven. Anyone got any links or suggestions? Smoke makes things work. When the smoke gets out, it stops! |
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| zeitfest Guru  Joined: 31/07/2019 Location: AustraliaPosts: 673 |
Is it going to detect a real human answering ? Otherwise the message maybe just sent to limbo. There is a very similar device in the current issue of Silicon Chip, there is a short intro on the SC website but I can't read the rest as I don't have a subscription  |
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mikeb Senior Member  Joined: 10/04/2016 Location: AustraliaPosts: 178 |
Hi Grogs. Try this link. I've used these with our Building Automation Systems. Works well. https://australism2m.com.au/4g-iot-serial-modem/ You can send text messages via serial and AT commands, trigger preset messages with digital inputs, escalate to the next number should the party not respond, etc. Very versatile little unit and well priced. Download the manual and see if it suits your purposes. Regards, Mike B. Edited 2026-04-29 16:59 by mikeb There are 10 kinds of people in the world. Those that understand binary and those that don't. |
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| PhenixRising Guru Joined: 07/11/2023 Location: United KingdomPosts: 1863 |
Just an FYI re: phone app. I believe that the following is true but I'll check when I get to my desk. Google has tightened-up "security" and therefore, they prohibit dialling and texting apps on PLAY, including the programming languages that facilitate this. I use RFO-BASIC (interpreter) for Android and if I want to incorporate dialling/texting in my app, I need to download the unrestricted version of the language directly from them. My app would not be allowed in PLAY which doesn't bother me. The language is a doddle to use. I'll update after I have a play, later on. 👍 |
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| PhenixRising Guru Joined: 07/11/2023 Location: United KingdomPosts: 1863 |
This will call the number (string expression) without showing the number on the screen (keeps it hidden)  RFO-Basic Manual 1.91 De_Re_BASIC!.pdf |
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panky Guru Joined: 02/10/2012 Location: AustraliaPosts: 1121 |
G, The following may be of use - brother and I developed to allow Mum a single button call ( as well we had movement detection or lack thereoff). The dialer is a Holtek HT9200a-1.pdf DTMF Generators - the circuit - MM-Dialer.pdf - and finally the program we used - mum-mon224.bas.zip Cheers, Doug. PS. We even designed a PCB shield for the dialer if you are interested. Edited 2026-04-30 09:17 by panky ... almost all of the Maximites, the MicromMites, the MM Extremes, the ArmMites, the PicoMite and loving it! |
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| Grogster Admin Group Joined: 31/12/2012 Location: New ZealandPosts: 9938 |
Thanks for all the replies, chums!  I will read through all this in detail tonight, and check out the links. Smoke makes things work. When the smoke gets out, it stops! |
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