Hi Experts,
I want to integrate EPC core (Open5GS) with open-source SGSN, It would be very helpful if anyone can share any document where I can find the installation steps and all.
Thanks in advance for your valuable time and consideration.
Regards, Sandip Biswas
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Dear Sandeep,
thanks for your first message to the openbcs mailing list.
On Tue, Mar 04, 2025 at 12:57:19PM +0000, Sandip Biswas wrote:
I want to integrate EPC core (Open5GS) with open-source SGSN, It would be very helpful if anyone can share any document where I can find the installation steps and all.
In case this is a commercial inquiry, you can always reach out to companies and/or freelancers providing paid services around open5gs and/or osmocom.
Your subject mentions S3/S4. This appears to imply that osmo-sgsn implements the S4 interface. As far as I recall, this is an optional interface within the 3GPP architecture. In fact, the SGSN at that point is not just a SGSN anymore, but 3GPP calls it a S4-SGSN. We did not mention that term anywhere on osmocom.org in the context of osmo-sgsn, as osmo-sgsn is a classic SGSN (for 2G and 3G), and not a S4-SGSN.
To this day, the only integration between open5gs and Osmocom CNI is the SGs interface for both CSFB as well as SMS-over-SGs. The Gn interface is used for mobility between GERAN/UTRAN (osmo-sgsn) and EUTRAN/EPC (PGW).
We'd be very happy to see anyone contributing code or funding of extending osmo-sgsn from a SGSN to a S4-SGSN.
Kind regards, Harald
::Disclaimer:: Information contained and transmitted by this E-mail communication including any attachment is intended solely for the exclusive use of the addressee(s) and may contain information that is privileged, confidential or exempt from disclosure. Access to this e-mail and/or to the attachment by anyone else is unauthorised. If you are not the intended recipient, an agent of the intended recipient or a person responsible for delivering the information to the named recipient, you are notified that any use, distribution, transmission, printing, copying or dissemination of this information in any way or in any manner is strictly prohibited. If you are not the intended recipient of this mail kindly destroy all copies of this message and any attachments and inform the sender.
please stop sending e-mails to public mailing lists with such disclaimers. Sending to a public mailing list means anyone can read the message in contradiction to whatever disclaimer you add.
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Harald Welte -
Sandip Biswas