Actions
Feature #2583
closedSGsAP Interface for LTE/ePC CSFB Support
Start date:
10/19/2017
Due date:
% Done:
100%
Resolution:
Spec Reference:
Description
It would be great to support combined 2G+4G networks by having a SGsAP interface in our MSC/VLR.
This interface is used for circuit-switched fallback between the MME and the MSC/VLR.
It's not based on ASN.1 and also not using SIGTRAN. Rather' it's using GSM-style TLVs over plain SCTP. For a detailed specification, see 3GPP TS 29.118.
Let's use this ticket to document what it would take to add this to OsmoMSC.
For a high-level summary of how CSFB and SMS-over-SGs, see http://www.leliwa.com/downloads/CSFB_and_SMSoSGs.pdf
Related issues
Updated by laforge over 6 years ago
- Related to Feature #1599: Gs interface (BSSMAP+) between SGSN and MSC/VLR added
Updated by laforge over 6 years ago
- Related to Feature #1583: Gs interface (BSSMAP+) between SGSN and MSC/VLR added
Updated by laforge almost 5 years ago
- Status changed from Stalled to Resolved
- % Done changed from 80 to 100
Actions