The history of this company traces back to OpenBTS, an all-software GSM stack that was started and largely written by Legba’s founder. And cellular networks at the Burning Man festival figure largely in the history of OpenBTS. These networks gave us our first experiences with large private networks (large coverage areas and many subscribers) in […]
The “Burning Man” Private Networks Read More »
Introduction NiPC (“network in a PC”) is a mode of operation supported by YateBTS that allows the basestation to operate in 2.5G GSM/GPRS mode without a core network. While YateBTS NiPC mode does support normal authentication and ciphering with a local SIM database, NiPC also offers a feature that bypasses all security procedures and allows
Ad Hoc Private Networks in GSM Read More »
Introduction Cell broadcast (CB) is a way to deliver a text message to large numbers of handsets over the cellular network. Its main use today is the delivery of Public Warning System (PWS) messages, also called CMAS, ETWS, Presidential Alerts, EU-Alerts, or other names in different parts of the world. The Legba Lab Kit supports
Public Warning Systems in Mobile Networks Read More »
Engineering for Change has mentioned our founder and CEO for Legba INC in their presentation on learning how to deploy mobile voice and data communication networks for remote communities. Kurtis Heimerl leads this E4C Webinar that highlights some of the projects that are possible with OpenBTS cellular networks. Then he showcases real world remote community
Engineering 4 Change OpenBTS Presentation Mention! Read More »
Introduction Many 4G networks cannot carry plain old telephone calls, so many mobile operators support voice calls by transferring the handset to a 2G or 3G network for the duration of the call. The procedure for doing this is called “Circuit-Switched Fallback”, or CSFB. CSFB is an interesting procedure from a network operation perspective and
CSFB with the Legba Lab Kit Read More »
