Thank you for the above answer:

"WM: Easiest way would be to add additional lines to the dialplan code that was provided in the [st-remote-alert] context. Just repeat the series of System() commands preceded by a line setting the phone number to be called:

exten => s,n,Set(SEND-HELP-REQUEST-TO=123456789″

It worked very well but I think it would be more elegant to have Follow Me function with ring all numbers from the list below at the same time. (ringall)

Which I would combined with all below options:

Call Confirmation Configuration
◦ Confirm Calls- Check this option to enable confirm calls for all external numbers in your list
above. This will prompt the system anytime it calls a number with a # to ask the caller to press
1 to accept the call. This is used to keep things like your cell phone voicemail box from
answering the call. It will only prompt external numbers to press 1 to accept the call. Internal
extensions will not be prompted because we block the call from going to the extension
voicemail box already for you.
◦ Remote Announce- This is the recording that is played when you answer a call on an
external number from your Follow Me. By default it says, "You have an incoming call press 1
to accept it.” You can use the default option or pick from a list of available system recordings
on your system. For using and managing system recordings, please see the System
Recordings section.
◦ To-Late Announce- This is the recording that is played when you answer a call on an external
number from your Follow Me, but someone else in the Follow Me list has accepted the call
before you got a chance to accept the call. Or the call has timed out and gone to your
destination in no answer below. By default it says, "Someone else has already answered your
incoming call.” You can use the default option or pick from a list of available system
recordings on your system. For using and managing system recordings please see the
section on System Recordings.

Source: http://literature.schmoozecom.com/follow_me-module/userguide/Follow_Me-Module-UserGuide.pdf

To me it was critical, that Radio frequency was 433MHz and it would work with 220V in EU.

I found “G5 Alarm” from Chuango in China which support GSM/SMS/RFID and wireless remote control and of course free app for your iPhone or Android smartphone.

I bought a packet with:
System ItemsCG-G5 Control Panel x 1
DWC-102 Wireless Door/Window Contact x 2
PIR-910 Wireless Pet-Immune PIR Motion Detector x 2
RC-80 Wireless Remote Control x2
TAG-26 RFID Tag x2

You can read more here:
http://www.chuango.com/english/contentpro.asp?ModuleType=3&ChannelID=3&classid=17&id=70

Or see it here:
https://www.youtube.com/watch?v=ks6-eXpGHaI

The product can be bought on Amazon, eBay or Alibaba Express – If Nerd Vittles project has any referral link please add it.

Because of import duty, vat, handling fee and shipment cost, I decided to buy in Denmark, where the was a 2 years warranty included as well as excellent support. It can be bought on http://www.sikkerthjem.dk

The “G5” can send sms or place a call, but the calls has the same obnoxious alarm tone, which is mention in this article, so it is great with the above guide and script, to get a real voice message to your own phone and the neighbors.

Nerd Vittles project had deserved the 13.5% from the referral link with eBates® – which would not cost me a dime, but I will make an equal PayPal donation instead, to show my support to the Nerd Vittles project.

Best regards Kristian

The obnoxious alarm tone which continues to play for 15 seconds instead of a voice message is irritating, so I like your idea.

In my country it’s not illegal to let the alarm dial 911 – but I would like the receivers of the emergency call to get a voice message. Your script will only dial one person, instead of 911.

Is there a way to let all five phone numbers receive a voice message, when an alarm is triggered?

WM: Easiest way would be to add additional lines to the dialplan code that was provided in the [st-remote-alert] context. Just repeat the series of System() commands preceded by a line setting the phone number to be called:

exten => s,n,Set(SEND-HELP-REQUEST-TO=123456789)

See http://www.straighttalkconnectedlife.com/home-alert-system-terms.php

[WM: Another interpretation is that you would not be programming the unit to call 911. The unit would be programmed to call your Asterisk server. What your server does with the call after that is completely up to your good judgment. Inadvertent calls to emergency numbers are a very serious problem in the United States. Without careful testing, we would never recommend automated calling, period. Having said that, there are many handicapped individuals who are incapable of placing calls to 911. Deploying a system that facilitates getting help to them when they need it outweighs the drawbacks of automatic calling systems in our humble (non-legal) opinion.]

Alarm systems directly calling 911 could clog up the trunks into the 911 center and prevent actual emergencies from reaching a 911 operator. Just like a PBX, the 911 systems have a finite number of trunks into them.

I do not advocate anything auto-dialing 911.

Always check with your local Police, Sheriff’s Office, or 911 Center before setting up any automated device which calls 911. Otherwise you can face criminal charges and fines based on local legislation.

[WM: Hadn’t seen SimpliSafe. Looks similar although I like the StraightTalk pricing which is still about half the monthly cost. Asterisk methodology should work equally well.