After 28 years of making PSTN alarm receivers, MCDI is announcing the End of Life for the last strictly PSTN Decrypta 4 and Exprecium d. The decline of the market for PSTN receiver is one reason to stop this production. The other is the absence of signal integrity we experience worldwide. Nowadays, telephone companies are converting signals to IP to carry them. And de-converting them back at the receiving site. This often result in signal degradation. The lack of signal integrity makes it increasingly difficult for the receivers to perform their tasks.

MCDI will continue to produce DT42m, a hybrid receiver joining the ip capacities of DT42ip to a one-line PSTN circuit for contact ID and PSTN.

MCDI is moving to a new building on April 20th 2022.
Our repair services will be off from April 16th to May 2nd 2022.

Please note our new address and ensure all your shipments such as parts and repairs are addressed to:

MCDI Security Products Inc. 
6556 Boul. Monk
Montréal QC H4E 3J1
Still the same phone number: +514-481-1067
Our line in Spanish is still available at: +514.487.0441

Please double-check the address on your packages as a re-direction from our old site will add long delays and a loss of package is always possible.

MCDI developed an Ajax plugin for two-way integration for the SECURITHOR Alarm Response Software.

MCDI, combined Ajax Translator and Enterprise API to deliver a dedicated plugin that manages security and monitors Ajax systems‘ alarms, including visual verification of alarms, security mode switching and relay control. The Ajax plugin has permanent licenses and is free-of-charge for alarm receiving centres that use the SECURITHOR Alarm Response Software, version 2.31 and higher.

Beyond alarm monitoring

SECURITHOR presents a complete dashboard to operators handling alarm signals along with steps and contacts to process each event. The app automates several tasks like sending emails, SMS and reports to subscribers. With such features, SECURITHOR gained popularity among CMS/ARCs in APAC, Italy, North America, LATAM, and Ukraine. 

An Ajax plugin 

To make it easy for everyone to use Ukrainian products, MCDI made an effort to establish an even more convenient tool for Ajax integration with their software.

Securithor and DT42 IP alarm receivers were already able to get alarm signals from Ajax security systems. And with a free AJAX plugin, the SECURITHOR operators can now view images transmitted by MotionCam detectors by simply clicking a button associated with the alarm event. Plus all operators of the SECURITHOR 2.31 Network Edition can control Ajax hubs remotely. Arming, Disarming, Night Mode and even relay activation are available directly in Securithor Alarm Processing tickets.

Contact MCDI to add this plugin to your SECURITHOR license or to know how you can get it with your SECURITHOR update.


We are following the Quebec Government lockdown with everybody working from home until April 7th. All support and sales services are at 100% availability.
Best way to reach us for the next 3 weeks is by email: or skype: mcdi-hq.

Exceptionally until April 7th, we have extended hours for those who already have a support plan. We can take update/support appointments starting from 6am EDT. Contact us previous day to arrange appointment.

Now is a good time to think of adding support coverage for your Securithor if you anticipate turmoil and unrest in your region.
Support plans come with maintenance of the database and update to the last 2.2 version. That’s a new Securithor each year. Support plans also cover the MCB Mission Control Board. With MCB you can track your Mobile Staff and dispatch jobs to them either on demand or from Securithor alarm events.

ISC West announced this week they were postponing the show to July. We can only applaud given the current situation. But the Vegas show was an important opportunity to meet customer and friends from around the world. We are working on replacing all the show meetings with online meetings. Let us know by email or skype: mcdi-hq if you were planning to visit us during ISC West so we can plan an online meeting!

Big week for DT42. We confirmed support for several manufacturers for our IP receivers.

We tested with with INIM for SmarLiving and Prime models.

More testing with STRATEL our SEA Distributor for:

.SECOLINK Pas816, LAN800 Module, GSV5, GSV6U gprs module, SUPA  L16 (lan)

That brings the total of confirmed brands and models to 48!!!!
And makes DT42 the most universal IP receiver. No other brings you as much confirmed compatibilities. Contact us to know more or if you want to test more brands.

DT42 is available in several variant for ip receiving and ip+PSTN and Guard booths. Model DT42gb is especially made for operation in Guard booths. It comes with a 4000 accounts database and a companion Android app to read alarm codes and for staff to write comments on each.

It’s time to say goodbye to an old friend, Securithor v1.
We launched V1 over 10 years ago.
While v1 had thousands of users at the height of v1, most of them elected to upgrade to Securithor v2 during the last 5 years.
Microsoft is also announcing the discontinuation of support for windows 7, the original OS or v1.
This tells us it’s time to move on.
We will not provide technical support to the operation or re-installation for Securithor v1 after October 15th 2019.
2019/10/15  will be considered as the End Of Life for Securithor v1.

We will retain the ability to provide licenses should the need arise.

You can contact our sales staff at to look into upgrades to Securithor v2.
MCDI can migrate the database of a Securithor v1 to a Securithor v2 as part of the purchase of v2.
For more information contact or skype: mcdi-hq ph: +514-481-1067

SECURITHOR 2.1.7 will start rolling out April 2nd with more than 40 new features and enhancements. You can get this important update as part of your support plan.
Contact us to make an appointment as updates are performed by the MCDI Support staff. Maintenance of your SECURITHOR database is done at the same time. You can renew your support coverage by contacting SECURITHOR sales staff.

Changes 2.1.5 => 2.1.7

-added additional items copied for the partition copy feature: schedules, cameras, omitted fields in for partitions and users

-added new account copying (Attachments, Installations, Partition Phone#, Users, Alarm Codes, Actions, Zones. *excluding shared items*) including partition copy feature

-added option to prevent operators from reorganizing the docking system (replaced autologin column in operator management)

-added tax number in account management

-added address notes for additional information to reaching the address on file

-added option to prevent operators from reorganizing the docking system

-improved STNetService and STReceiverService by making it relaunch quicker and even if closed on purpose

-keeping previously logged-in operator number when logging in

-allowing changing of alarm routing filters in STNet without having to delete and recreate a new entry

-showing account limit in red if a limit is in place

-hikvision and dahua talk update for new sdk

-added pre-populated templates for new installations (ContactID, SIA, MCDI)

-added Audit Trail feature for Securithor (AccountManagement/Cities/Templates/Operators/AdminComments/Installers/Groups/SMS/ServiceOrders/Settings). Viewable in STNet.

-added Ufone to SMS gateway (Pakistan)

-added notes for holiday user

-added showing holiday date range in alarm processing.

-added new alarm code types: fire/burglary/technical

-added PPP alarms to show map in Securithor

-added TVT and Cubitech Tribrid camera support (requires CAM module)

-added IDIS camera (requires CAM module)

-added Hungarian language

-added Italian language

-added csv FileImporter

-added basic codes (ACOM,RCOM,ATCP,RTCP,ASTR) to account 0 during installation

-added option in Securithor Settings to set MCB database location

-added tax number field to account management

-added saving ClickToDial recording to a specific folder and allowing reference from traffic window

-(added) cameras can now be linked to zone. (overrides alarm code camera)

-improved streplication by reporting descriptive error messages

-STTimeZoneSelector has a Save and Quit button available even when no change needed during installation

-reports speed optimizations

-new STNet replication monitor to better detect replication failure

-email management status now shows words instead of ambiguous numbers

-increased button size for SIP dialling window + added translations

-allowing video verification from alarm processing page even if the code being processed is not linked to a camera, as long as there is a camera and channel defined in the account

-dead man alarm is now active and plays priority sound 9. email/sms settings are dependent on alarm code settings rather than deadman settings.

-added clickable gpsp position sent by email

-changed sms management in STNet refreshing too often using a lot of processing

-changed panic type alarms only match to users now, not zone

-removed sorting of password field in call list causing confusion


-added support in SIA format for ^ character

-added Telsim sms Gateway (Cyprus)

-added Bosch UDP receiver support

-improved SIA2 parsing for multiple receivers without blocking communication by being stuck on the same alarm when the format is not standard

-improved sms buffer clearing code to prevent full buffer of received sms

-replaced Tirupathi SMS with PointSMS Gateway (India)

-accepting of SIA2 alarms where there is no / (forward slash) separating the partition and the code

-changed parsing of SIA2 comment alarm containing a colon (:)


-WebOperator traffic print + rights and custom watermark

Added Tax Number field


*not included in this version yet*. To be announced April 22nd.