We are the mobile core software specialist for MVNOs
Leissner, established in 1969, is a renowned IT development company in Sweden. We are developing communication solutions for telecom operators and have contributed to standards and innovations in telecommunications.
Our vision is to contribute in breaking up the dominance of large telecom operators by delivering cost-efficient software and establish interoperability for new, fast growing independent operators. Leissner’s strength is the flexible and customer oriented development of new and existing functionality for operators in the telecommunications industry.
Leissner has over the years maintained a good track record of delivering stable and secure software for telecom operators. The Leissner product family includes traditional telecom systems and a MVNE/MVNO core platform. All systems are developed by Leissner employees in Sweden.
MVNE/MVNO Mobile Core
MVNE/MVNO Mobile Core is a suite of mobile core components, providing a flexible mobile setup with unique functionality that can be customized to fit any operator that is providing mobile services as MVNE or MVNO.
MVNO SaaS
IMS Cloud
IMS Cloud is a suite of services for VoLTE and VoWiFi.
GMSC
GMSC is a standardized voice softswitch that MVNOs need to route voice calls outside the mobile network.
GTP-Proxy
GTP-Proxy is a mobile core network node used to proxy GTP traffic from GRX network to several PGWs.
HSS/HLR
HSS/HLR is a central subscriber database that contains details of each subscriber that is authorized to use the mobile core network.
OCS
OCS is for securing real-time charging payments.
PGW/GGSN
PGW/GGSN is a standardized packet core component that operators and MVNOs need between the GSM, UMTS, LTE and 5G NR network and the Internet.
Milestones in Leissner company group
2022
Netwo launch mobile services in France using Leissner MVNE/MVNO Mobile core installed locally in France in the customers data centers.
2021
Cellhire launch mobile services in France using Leissner MVNO SaaS.
2020
Leissner becomes MVNE partner with Hi3G Denmark.
2019
Celebrates 50 years in the IT industry.
2016
More than 10 MVNOs installed on Leissner core software.
2015
First mobile core installation outside Sweden.
2014
The mobile platform offers complete MVNE functionality.
2011
Leissner's first full MVNO setup together with Hi3G Access in Sweden.
2008
Interconnection agreements for SMS in Sweden and started development of systems for SMS.
2005
Leissner Telecom Billing system was introduced to the Swedish market.
2002
Started development of systems for telephony.
The company group became a telecom operator and signed fixed telephone interconnection agreements with Telia.
2001
Strategical decision to be a telco system supplier.
2000
Gotanet was one of the first actors in Sweden to offer ADSL access services using Telia telecommunications stations.
1996
Götalandsnätet AB was founded with the brand Gotanet acting as Internet Service Provider (ISP).
1978
Obtained the first mainframe, SAAB D22.
1969
Leissner Data AB was founded.
