Sx Message Priority
This section describes the Sx message priority.
Based on the VoLTE flags (volteSession and volteBearer), SGW sets the message priority in Sx request messages (Sx-Est, Sx-Mod, and so on) while processing the received requests/responses (for example, S5-CBReq, S11CBResp, S11-UBRes, S5DBReq, and so on).
Sx Message Priority is set when the session is marked for volteSession (or it has VoLTE QCI).
In Sx Req (Establishment or Modification) Message Header:
"HEADERS": {
"length": 30,
"msg_type": 52,
"priority": 2, <<< VOLTE Session priority value
"priority_flag": 1, <<< Priority flag is true i.e 1
"retransmit": 0,
"seid": 10002,
"seid_flag": 1,
"seq_number": 22,
"version": 1
},