Optus outages and service status in Cavendish, Victoria

Problems in the last 24 hours in Cavendish, Victoria

The chart below shows the number of Optus reports we have received in the last 24 hours from users in Cavendish, Victoria and surrounding areas. An outage is declared when the number of reports exceeds the baseline, represented by the red line.

Community Discussion

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Optus Issues Reports

Latest outage, problems and issue reports in social media:

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  Zecoshi🛡️ (@Zecoshi) reported 3 minutes ago

  Does everyone know you can dumb down the Claude model to get around prompt restraints in Optus and above yeah ?

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  BRODA (@RazeBannon) reported 6 minutes ago

  @BritishHodl Grok can an ISP block voice over IP? Yes, ISPs can block Voice over IP (VoIP) traffic at their network level, and many do so in practice. This is technically feasible using tools like port blocking, deep packet inspection (DPI), and other traffic management techniques. How ISPs Block VoIP ISPs control the core network infrastructure, so they can inspect and filter traffic before it reaches customers. Common methods include: Port-based blocking**: Traditional VoIP often uses specific ports like UDP 5060/5061 for SIP (signaling) and a range of ports (e.g., 10000–20000) for RTP (media/voice). ISPs can simply drop traffic on these ports. Deep Packet Inspection (DPI)**: This examines not just headers but packet contents, signatures, packet sizes, timing, and protocol behavior to identify VoIP even if it uses non-standard ports or obfuscation. DPI can dynamically detect and block SIP, RTP, or app-specific patterns (e.g., Skype, WhatsApp calls). IP address or domain blacklisting**: Blocking known servers of VoIP providers. Protocol anomaly detection or traffic shaping**: Dropping or throttling UDP-heavy, low-latency streams typical of voice calls. Real-World Examples Certain countries and carriers (e.g., in the Middle East, Morocco, Philippines, or places with state telecom monopolies) block VoIP to protect traditional phone revenue or for regulatory reasons. Mobile providers like Optus 4G or others have blocked SIP traffic. Corporate/school networks or bandwidth-limited ISPs sometimes block or deprioritize VoIP to conserve resources. China has historically blocked VoIP, though workarounds emerged over time. Limitations and Challenges for Complete Blocking Encryption and obfuscation**: Modern VoIP (e.g., over WebRTC, HTTPS, or apps like Signal/WhatsApp) is harder to detect reliably. DPI isn't foolproof against randomized ports, variable packet patterns, or VPN-like wrapping. VPNs and tunnels**: Users can often bypass blocks by routing traffic through a VPN, which encrypts and hides the VoIP signature. Evasion techniques**: Providers and users adapt with port hopping, STUN/TURN servers, or proxies. False positives**: Overly aggressive blocking can disrupt other UDP-based services (gaming, video streaming). Complete, unbreakable blocking is difficult long-term without also harming general internet performance, but partial or effective blocking for most users is very achievable. Why ISPs Do This Reasons include protecting legacy telephony revenue, complying with regulations, managing bandwidth, reducing congestion, or enforcing content policies. In summary, yes—ISPs have both the capability and precedent for blocking VoIP, primarily via DPI and port controls, though motivated users can often circumvent it. If you're dealing with a specific ISP or scenario, details could help narrow down options.

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  Brett 🌶️ 🌶️ 🌶️ 🌶️ 🌶️ 🌶️ 🌶️ 🌶️ 🌶️ 🌶️ (@BrettJH2) reported 12 minutes ago

  @FreedmFightr1 When OPTUS stadium was built in WA originally they wanted to charge obscene prices for crap pies until the backlash. But that's the mindset. Instead of being grateful. They want to milk the supporters DRY!

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  Brendan Kelly (@brendan_kelly9) reported 12 minutes ago

  @nicko_316 Thats bad news for Brizvegas if you’re right. Freo will be favourites in that match up at Optus.

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  Jeanette-End the Zionist Genocide @WSWS_Udates (@JaniceB72627796) reported 13 minutes ago

  @james00000001 I now think not an Optus problem as my husband received the alarm and he is on the same service as me. If I don't get anything I will contact Optus to find out why not.

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  Satoshi Goy (@satoshigoy) reported 18 minutes ago

  @Optus Thanks, but that doesn’t address what actually happened. I was in the emergency broadcast area with a compatible device. There was no Optus coverage, but there was coverage from another network. Despite that, I never received the AusAlert. If emergency alerts can’t be delivered when your carrier is unavailable, even though another network is in range, that’s a significant issue. In an emergency, people shouldn’t miss life-saving warnings because of which carrier they’re with. Can you clarify whether AusAlerts are expected to be delivered in this scenario, or is this a limitation of the current system?

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  A K (@AK22762976) reported 21 minutes ago

  @PaulBongiorno Oh woe is me ! Just purchase a sim card supported by Optus [this is redundancy contingency] when Telstra goes off line swap out their sim & slot in the backup & vice versa. Alteratively purchase a dual sim phone which allows you to switch between service providers

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  tahlia (@endearinglwt) reported 22 minutes ago

  why ******** did optus charge my phone bill TWICE

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  Mohib Ullah Shareef (@Mohib_Leo) reported 23 minutes ago

  @1amsharky @DeafMango ENG had better bowlers last time around. This time they don't have quality bowlers. They did really well in the last Ashes down under when they got bouncy decks in Optus, MCG. If theres a flat deck then it would end up in draw as neither teams could take 20 wkts on those surfaces

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  Rob (@hkrob) reported 24 minutes ago

  @Optus have sent DM with screenshots etc to Optus Help @optus_help