https://voipstackindex.com/news/kddi-12-million-credential-breach-voip-provider-proof/ 2026-07-09T00:00:00.000Z VoIP Stack Index en 2026-07-09T00:00:00.000Z KDDI's Credential Breach Made Provider Recovery Proof a VoIP Test https://voipstackindex.com/news/telstra-mobile-outage-voice-continuity-failover-proof/ 2026-07-08T00:00:00.000Z VoIP Stack Index en 2026-07-08T00:00:00.000Z Telstra's Mobile Outage Made Voice Continuity a Failover Test