Editing Circuit Switched Data (section)

== Successors ==
GSM data transmission has advanced since the introduction of CSD:
* [[General Packet Radio Service]] (GPRS) provides more efficient [[Packet switching|packet-based]] data transmission directly from the mobile phone at speeds roughly twice those of HSCSD.
* [[Enhanced Data Rates for GSM Evolution]] (EDGE) (E-GPRS) and [[Universal Mobile Telecommunications System]] (UMTS) provide improved radio interfaces with higher data rates, while still being backward compatible with the [[GSM core network]].
* Enhanced Circuit Switched Data (ECSD) was developed alongside GPRS/EDGE<ref>{{Cite book |title= Gateway to 21st Century Communications Village. VTC 1999-Fall. IEEE VTS 50th Vehicular Technology Conference (Cat. No.99CH36324)|chapter=Enhanced circuit switched data for real time services over GSM |date=1999 |doi=10.1109/VETECF.1999.797200 |chapter-url=https://ieeexplore.ieee.org/document/797200 |last1=Hamiti |first1=S. |last2=Hakaste |first2=M. |last3=Moisio |first3=M. |last4=Nefedov |first4=N. |last5=Nikula |first5=E. |last6=Vilpponen |first6=H. |pages=578-582 vol.1 |isbn=0-7803-5435-4 }}</ref>
In some places CSD services have continued to operate on 2G networks for a long time. In the [[Netherlands]] operator [[KPN]] switched the service off in 2021.<ref>{{Cite web |title=Circuit Switched Data (CSD) service on 2G to be terminated in the Netherlands |url=https://www.adesys.nl/en/csd-service-on-2g-to-be-terminated-in-the-netherlands |access-date=2024-06-18 |website=Adesys B.V. |language=en}}</ref>