Liksnas street 7, Rīga

CORTEX. Security systems and monitorin

Phone: +371 67 505 603




New update of RT4-5gp communicator

CU GSM 2Highly anticipated update of the popular GSM/GPRS communicator RT4-5gp (Version 3.1-22) is avalaible now.

Now this communicator can send SMS messages not just in codes, but also as a text in any language. This will make the usage of device much wider. In order to have a possibility to edit the messages, you must update the version of your communicator for up to V1.3.5. 

If you have questions or troubles with updating the communicator, please do not hesitate to contact our support team. 

Contact us

Korteks, SIA
Phone: +371 67 505 603, Fax:+371 67 505 604
Addres: Liksnas street 7, Rīga, LV-1003 Latvia
Technical support: