# RangeNetworks/openbts

GSM+GPRS Radio Access Network Node

Repository: https://github.com/RangeNetworks/openbts
Canonical: https://ross.abutalabs.com/products/openbts
Language: C++
License: AGPL-3.0
License Family: copyleft
Last push: 2024-07-04T09:19:20+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 4548, "days_push": 790, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1012, forks 375 (observed 2026-08-28T04:03:13.466980+00:00)

## What it is
OpenBTS is an open-source C++ implementation of a GSM and GPRS radio access network node that uses software-defined radios to create a cellular base station. It bridges GSM handsets to VoIP infrastructure via SIP, integrating with Asterisk and providing SMS support through a store-and-forward server.

## Use cases
- run a private GSM cellular network with an SDR
- build a small-scale mobile network for research or testing
- connect GSM phones to a VoIP/SIP telephony system
- send and receive SMS over a self-hosted GSM base station
- experiment with GSM protocol stacks (04.08, RRLP)
- set up cellular coverage in remote areas without carrier infrastructure

## When to choose
- you need a self-hosted GSM base station using software-defined radios
- you want to bridge legacy GSM handsets with SIP/VoIP systems like Asterisk
- you are doing telecom research, security testing, or education on GSM protocols

## When to avoid
- you need modern 4G/LTE or 5G support rather than GSM/GPRS
- you want a production carrier-grade network with regulatory compliance
- you need active development and frequent updates
- you lack compatible SDR hardware or telecom expertise

## Facets
- artifact type: application
- maturity: maintenance
- function: networking, embedded, sdk
- domain: networking, embedded-systems, hardware
- platform: cpp, self-hosted
- tags: gsm, gprs, sdr, software-defined-radio, sip, sms, radio-access-network, asterisk, telecom, telephony, telecommunications, linux

## Member repositories
- RangeNetworks/openbts (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:13.466980+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T07:11:43.544454+00:00, confidence not recorded.
  - readme: https://github.com/RangeNetworks/openbts (fetched 2026-08-28T04:03:13.466980+00:00, sha 1c2c4f1505ab)
- Data as of 2026-08-30T08:39:29.467469+00:00.