Mobile telephony

• ROAMING NETWORKS d.o.o. – installation of ERICSSON and NOKIA radio base stations and NEC, ERICSSON radio relay equipment on more than 500 locations throughout Serbia, (installation of 2G, 3G and LTE RBS, optimization, swap …) for TELEKOM SRBIJA a.d.
• TELEGROUP d.o.o. – installation of ERICSSON and NOKIA radio base stations and ERICSSON radio relay equipment in more than 50 locations throughout Serbia, replacement of radio base stations and radio relay equipment within SWAP 2G 3G technology and 4G technology for Vip mobile d.o.o.
• KODAR ENERGOMONTAŽA d.o.o. – space preparation, installation of ERICSSON and NOKIA radio base stations, installation of radio-relay equipment in more than 50 locations across Serbia for Vip mo-doo d.o.o. and TELEKOM SRBIJA a.d., consulting services at locations analyse for SWAP Ericsson equipment for Croatian Telekom
• KBV DATACOM d.o.o. – installation of HUAWEI radio base stations at 15 locations, (LTE technology) for TELENOR SERBIA
• TELELINK d.o.o. – installation of 3 NOKIA radio base stations with room preparation and installation of radio relay equipment for Vip mobile d.o.o.
• TELEMONTAŽA d.o.o. – installation of Ericsson radio base stations on 50 locations, (LTE technology) for TELEKOM SRBIJA a.d.
• ITG TEL d.o.o. – installation of ERICSSON radio base stations at 4 locations, (2G technology) for TELEKOM SERBIA a.d.. Repair of telecommunication staircase in Bačka Palanka, (cleaning of corrosion column, anticorrosion protection, painting of pillar, …)

Fixed telephony

• ROAMING NETWORKS d.o.o. – assembly of passive optical equipment in 80 buildings in Novi Sad within the project of modernization of fixed telephony for TELEKOM SRBIJA a.d. (installation of optical distribution cabinets, laying of riser cables inside the buildings, cable processing, installation of floor boxes, splicing and measuring of OTDRs)
• LOGO d.o.o. – assembly of passive optical equipment in 45 buildings in Belgrade within the project of modernization of fixed telephony for the operator
• KABELNET d.o.o. – assembly of passive optical equipment in 35 buildings in Novi Sad within the project of modernization of fixed telephony for TELEKOM SRBIJA a.d. (installation of optical distribution cabinets, laying of riser cables inside the buildings, cable processing, installation of floor boxes, splicing and measuring of OTDRs)
• ORION TELEKOM d.o.o. – connecting users to existing optical infrastructure with installation and commissioning of customer equipment in more than 60 locations in Novi Sad and Belgrade. Installation of distribution ducts through TT sewage to optic distribution cabinet in buildings with split and measurement. Installation of over 50 optical distribution cabinets.

Production and installation of steel elements

• TELEGROUP d.o.o. – making 4 steel grid antenna columns 36m high for mobile telephony
• ROAMING NETWORS d.o.o, TELEGROUP d.o.o, IRITEL a.d. – production of different types of steel elements for mobile telephony, (tubular carriers, “H” carriers, pipes, clips, radio base station carriers ..)