| IMSConfig.Media.preferredAMRWBMode removed | 2 | absent |
| IMSConfig.Signaling.AllowedPdpTypeMask removed | 1 | absent |
| IMSConfig.Signaling.DefaultAuthAlgorithm added | absent | AKAv1-MD5 |
| IMSConfig.Signaling.DropRegistrationOnSRVCC added | absent | true |
| IMSConfig.Signaling.EarlyMediaNeedsHeader added | absent | true |
| IMSConfig.Signaling.IncomingCallEndReasons added | absent | {"TemporarilyUnavailable":{"TerminationEvent":"RemoteHangup","StatusCode":480}} |
| IMSConfig.Signaling.InitialRemotePreconditionStrength added | absent | mandatory |
| IMSConfig.Signaling.OnlyUpdatePreconditionsIfConfPresent removed | true | absent |
| IMSConfig.Signaling.PreconditionUpdateDelayTimerMilliseconds added | absent | 128000 |
| IMSConfig.Signaling.Preconditions added | absent | Required |
| IMSConfig.Signaling.SupportPEarlyMediaHeader added | absent | true |
| IMSConfig.Signaling.TriggerCSFBOnWaitForRingingTimeout removed | true | absent |
| IMSConfig.Signaling.UseIPSec added | absent | true |
| IMSConfig.Signaling.defaultAuthAlgorithm removed | AKAv1-MD5 | absent |
| IMSConfig.Signaling.dropRegistrationOnSRVCC removed | true | absent |
| IMSConfig.Signaling.earlyMediaNeedsHeader removed | true | absent |
| IMSConfig.Signaling.initialRemotePreconditionStrength removed | mandatory | absent |
| IMSConfig.Signaling.preconditionUpdateDelayTimer removed | 128000 | absent |
| IMSConfig.Signaling.preconditions removed | required | absent |
| IMSConfig.Signaling.supportPEarlyMediaHeader removed | true | absent |
| IMSConfig.Signaling.useIPSec removed | true | absent |
| IMSConfig.Voice added | absent | {"EnableVolteByDefault":true} |
| IMSConfig.XCAP removed | {"supported":false} | absent |