Telstra Exiting VoIP Services: What It Means & What’s Next for Your Business

Telstra is phasing out its VoIP (Voice over Internet Protocol) infrastructure in stages, and businesses must act quickly to avoid communication breakdowns.

Here are the official shutdown timelines:

• Inbound (13/1300/1800) Numbers:
  - Providing new connections has been stopped since 18 November 2024, and all current services will end on 24 November 2025.
  - These inbound numbers are widely used by Australian businesses as customer support or hotline numbers. Once Telstra discontinues them, your 13, 1300, or 1800 numbers will stop working unless you port them to another VoIP provider.
• Call Termination Services (CTS):
  - Offering of new connections has been halted after 30 September 2025. All existing services will cease by 30 September 2026.

In simpler terms, if your business phone number starts with 13, 1300, or 1800 and is hosted by Telstra, you’ll need to migrate or port it to another VoIP provider before November 2025 to keep your calls active.

If your company still depends on Telstra’s VoIP network, this shutdown could lead to lost inbound calls, disrupted customer service, and revenue loss once these numbers go offline. Waiting until the last moment to migrate can also make things complicated, as many businesses will rush to port their numbers near the deadline. Migrating early ensures a smooth transition with no downtime or loss of your existing numbers.

Much like Microsoft’s transition from Skype to Teams, Telstra’s exit reflects a broader industry shift toward modern, AI-powered VoIP systems. These next-generation platforms offer intelligent call management, automation, analytics, and seamless scalability, features that traditional telecom infrastructure can no longer support efficiently.

If you’re looking for a reliable alternative to Telstra’s VoIP, Calilio provides a powerful, future-ready business phone system that preserves your existing numbers while adding modern capabilities.

With Calilio, you can:

• Port Your Telstra Number Easily: Keep your 13, 1300, or 1800 number active by porting it to Calilio before Telstra’s shutdown.
• Access AI-Powered Insights: Get automated call summaries, sentiment analysis, and real-time analytics after every call.
• Manage Calls Intelligently: Forward, route, record, and monitor calls in one unified cloud platform.
• Connect Globally: Further access to local, mobile, and toll-free numbers from 100+ countries.
• Scale Securely: Enjoy a cloud infrastructure built for reliability, compliance, and performance.

With Telstra’s inbound numbers shutting down in November 2025 and CTS services ending in 2026, the clock is ticking. Porting your numbers early ensures your business stays reachable, without missed calls or customer confusion.

Telstra’s VoIP shutdown marks a turning point in Australian business communication. While legacy systems fade, modern cloud platforms like Calilio offer smarter, faster, and more scalable solutions.

By porting your Telstra 13, 1300, or 1800 numbers to Calilio, you can maintain your trusted contact identity while unlocking advanced AI-powered communication tools.