GSM Mobile Networks

GSM with Osmocom: OsmoSGSN for Packet Data

Configuring the Osmocom Serving Gateway Support Node (SGSN) for 2G/3G networks.

EPC GSM LTE Mobile Networks Uncategorized

Getting TEID up with GTP Tunnels

What’s the deal with Tunnel Endpoint Identifiers and what do they do?

GSM Mobile Networks RF

GSM with Osmocom: GPRS & Packet Data

So far we’ve focused on building a plain “2G” (voice and SMS only) network, which was all consumers expected twenty years ago. As the number of users accessing the internet through DSL, Dial Up & ISDN grew, the idea of getting this data “on the go” became more appealing. TCP/IP was becoming the dominant standard […]

EPC LTE Mobile Networks RFCs & Standards

Why GTP for Mobile Networks?

Why and How GTP is used in LTE networks to carry user data.