668953- Bulgaria – Upgrade services of telephone switching equipment – ​​"Modernization of the existing digital institutional automatic telephone exchanges, models HiPath 3800, HiPath 3750/3700, HiPath 4000 and Hicom 150 Office PRO, manufactured by Siemens, installed in the administrative buildings of the NRA Sofia TD, the NRA service offices on the territory of the city of Sofia and the Lovech service office at the NRA Veliko Tarnovo TD."

This tender with title 668953- Bulgaria – Upgrade services of telephone switching equipment – ​​"Modernization of the existing digital institutional automatic telephone exchanges, models HiPath 3800, HiPath 3750/3700, HiPath 4000 and Hicom 150 Office PRO, manufactured by Siemens, installed in the administrative buildings of the NRA Sofia TD, the NRA service offices on the territory of the city of Sofia and the Lovech service office at the NRA Veliko Tarnovo TD." has been published on Bidding Source portal dated 16 Oct 2025 for the country of Bulgaria. It has been categorized on Upgrade services of telephone switching equipment. For similar tenders you can see tenders mentioned below of this page.