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InterCom GSM Kit Forest - GSM caller, with GPRS, SMS and voice calls

ASC Global
256€ + VAT ( 325€ )
Availability: In stock
Expected delivery: June 03, 2024

GSM intercom module, green version

  • InterCom GSM with metal push button, microphone, speaker
  • 2 relay output which DTMF codes can control during call
  • Free gate opener function from 1000 phone numbers
  • Power monitoring, ProBattery for uninterrupted operation
  • Event log of 16.000 entries, continuous GSM signal strength monitoring
  • Night shift mode: a time interval can be set when the module will not forward incoming calls
  • LED lighting
  • Programming by SMS, PC and Android
Manufacturer's warranty
Manufacturer's warranty
We offer a min. 2-year manufacturer's warranty on our products
Fast delivery
Fast delivery
We deliver our products from stock with a short deadline
Technical support
Technical support
We provide clear and comprehensive technical support for our products in addition to the English language description and videos
More than 10 years of experience
More than 10 years of experience
We look back on a history of more than 10 years in the production and development of our products
Continuous development
Continuous development
We are constantly developing our products and services, which are also available for our older products
256€ + VAT ( 325€ )


InterCom GSM Kit Forest

Introducing the InterCom GSM Kit Forest – a one-of-a-kind communication solution with a green exterior. The wall-mounted unit is specifically designed for use in forests, national parks, and nature in case of emergencies, information, or access control to the gates. Currently, the unit is available in green, but customization options for colour and label are also readily available.

Eight phone numbers

Get immediate assistance with InterCom GSM Kit Forest - it can notify up to 8 phone numbers of your choosing with customizable ring and conversation times. Plus, you can even include authorities' phone numbers for added security! Press the button, and the calls will be round-robin until someone answers.

SMS sending

Send SMS notifications easily with just a button press! Input your desired message and choose who among the eight specified phone numbers will receive it. Set your preference for sending an SMS, calling, or both. 

GPRS transmission

You can also set a monitoring station notification by pressing the push button. Streamline your GPRS feed and take remote monitoring to the next level. Set up push button notifications with customer details, events, and zones, and choose between SIA DC and Enigma protocols for seamless integration. Trust us to ensure your transmissions are secure and reliable. The periodic life sign helps you know that everything is fine with the device.

Notification order

We can specify the notification as mentioned above types by pressing the button. If we set them all, they will be implemented in the following order:

  • GPRS transmission for the monitoring station
  • Sending SMS to specified phone numbers (max. eight phone numbers)
  • call initiation to selected phone numbers (max. eight phone numbers)

If both SMS sending and calling are set for a phone number, it can be advantageous that the person in question will be informed of the event before receiving the call.

24/7 operation, LED lighting

Keep your InterCom GSM Kit Forest up and running with the option to connect a ProBattery for continuous operation, even during power interruptions. The GSM module can send SMS and voice message alerts during these events. Plus, with the battery, the LED lighting will also stay on, making locating the unit in the dark easier. Choose between LED colours and enjoy the illumination of the label when you push the button in the evening.

Internal microphone and speaker

Adjust the volume of your device's internal microphone and speaker to match the surrounding noise level. Easily tweak the sensitivity for optimal listening experiences.

Sending a life test

With the life test function, you can specify the interval at which the InterCom GSM Kit Forest should send SMS notifications, thanks to which we can ensure the device is working. If a data SIM card is used, sending a GPRS life sign for remote monitoring is possible, so we get a continuously monitored device.


After receiving the call, you can also control two relay outputs. We can handle the outputs separately with our phone. The output can be controlled from unlimited phone numbers without phone number identification and from 1000 phone numbers with phone number identification. The output control method (bi- or monostable) and time can be specified for each output.

Installation and programming

Straightforward and speedy device installation made possible! Even programming can be taken care of before on-site installation. The plastic box's inner surface features groove ideal for secure fastening and connecting power and antenna cables. Crucial tip: ensure the antenna is placed outside the box to guarantee correct field strength.

For programming, opt for our recommended USB Eco or USB kit, or select our WiFi/Bluetooth Programmer for a wireless connection. Our free ProRead program (PC) can be downloaded from our website, allowing equipment programming and event log analysis. With a 16000 event log, you can easily verify time-stamped outgoing calls and remote supervision transfers.

InterCom GSM setting

Application areas:

  • Wireless intercom
  • Control: gate, barrier, and garage door opening
  • Monitoring power supply (230V) along with sending notifications about its change
  • In forests, national parks, nature

InterCom GSM accessories

Product features

Inputs (+ expander): max. 5
Relayed Outputs (+ expander): 2
Relayed output load: max. 20V@500mA
OC outputs (+ expander):
OC output load:
User phone numbers for sending notifications: 8
User phone numbers for output control: Unlimited / 1000 phone number
Independent signal sending to monitoring center:

User phone numbers for forwarding incoming SMSs:

Transmission channel: GSM/GPRS
Caller identification:
Alarm center function (arm/disarm, entry/exit delay)
Selectable 24h zones:
Adjustable input sensitivity:
Configurable inputs (NO/NC):
Independent SMS sending to user phone numbers with customized text:
Monitoring station phone numbers: 2
Periodic test report sending:

Sending recorded voice messages to user phone numbers:

Sending alarm to user phone number with a siren sound:
Inbuilt internal clock:
Event list/number of stored events: 16 000
GSM signal strength monitoring and logging hourly

Translation Contact ID codes into SMS along with sending it to user phone numbers (Distinguishing 250 events and 250 zones)

Configurable own Contact ID codes:
Telephone line simulation:
PSTN phone line monitoring:

Output activation with free GSM call:

Security SMS password:
Programming software(PC, Android):
Programming method: USB / SMS / Bluetooth / WIFI
Battery connection options:
Power drain (standby/transmitting over GSM): 40mA + external unit current consumption / 400mA + external unit consumption
Simulated line/transmitting over GSM:
Power voltage: 9-24 VDC


Power voltage 9-24 VDC
Standby power drain 40 mA + external unit current consumption
Maximum power drain 400 mA + external unit current consumption
Relay output load max.20V / 500 mA
GSM module type SIMCOM 900
GSM frequencies GSM 850 / EGSM 900 / DCS 1800 / PCS 1900 (Multi-Band)
SIM card usage brand-free GSM module
GSM antenna type SMA connector
Size 78 x 51 x 20 mm, in package:132 x 128 x 32 mm
Operating temperature -20°C – +50°C

Attached documents