ATT_aio_US what changed — iOS 26.0

carrier-explode iOS carrier and country bundles

iPhone Apple Watch

ATT_aio_US

overrides_D52g_D53g_D53p_D54p.plist Whole bundle

overrides_D52g_D53g_D53p_D54p.plist changed 9 rows Before After

Key path	Before	After
cDerPriFileVersion	2.1.187	2.2.188
aIMSConfig.Signaling.SpamCallCategoryMapping	absent	["telemarketing:Telemarketer,telemarketer,telemarketing","survey:Survey,survey","debt-collection:Account Services","political:Political Call,Political,political","not-for-profit:not-for-profit,Non-Profit,non-profit,Nonprofit","spam:spammer,Spam Risk,Spam,spam","fraud:Fraud"]
aIMSConfig.Signaling.SpamCallRiskLevels	absent	{"low":"1:20","high":"75:100","medium":"21:74"}
aIMSConfig.Signaling.SpamHeaderFeatureCapability	absent	Enabled
cIMSConfig.Signaling.UseT3402ForPdpBackoff	true	false
rIMSConfig.Voice.E911OverIMSSupported	true	absent
aIMSConfig.Voice.EnableHoldForRTT	absent	true
aIMSConfig.XCAP.DisableOnNetworkError	absent	false
aIMSConfig.XCAP.ForbiddenHttpErrorCodes	absent

Key path

Before

After

cDerPriFileVersion

2.1.187

2.2.188

aIMSConfig.Signaling.SpamCallCategoryMapping

absent

["telemarketing:Telemarketer,telemarketer,telemarketing","survey:Survey,survey","debt-collection:Account Services","political:Political Call,Political,political","not-for-profit:not-for-profit,Non-Profit,non-profit,Nonprofit","spam:spammer,Spam Risk,Spam,spam","fraud:Fraud"]

aIMSConfig.Signaling.SpamCallRiskLevels

absent

{"low":"1:20","high":"75:100","medium":"21:74"}

aIMSConfig.Signaling.SpamHeaderFeatureCapability

absent

Enabled

cIMSConfig.Signaling.UseT3402ForPdpBackoff

true

false

rIMSConfig.Voice.E911OverIMSSupported

true

absent