SD-WAN · SASE · APAC Carrier
Telstra SD-WAN & SASE Review
Telstra is Australia's largest telecommunications company, headquartered in Melbourne and listed on the ASX (TLS). Telstra Enterprise delivers managed SD-WAN and SASE services across Australia and globally through its 225,000km fibre network, 4G/5G mobile connectivity reaching 98% of the Australian population, and 2,000+ PoPs in 230+ countries. Telstra's SD-WAN portfolio is based on Cisco Catalyst SD-WAN and supports the Telstra Adapt S1 service — the first CSP in Australia to embed a SASE stack with SD-WAN integrated directly into Telstra's core network. Telstra was positioned at the top of GlobalData's WAN leaderboard for APAC and recognised by IDC as a leader in the Asia-Pacific Next-Generation Telecom Services MarketScape. Telstra has deployed over 7,000 SD-WAN devices.
Quick Facts — Telstra
| Category | Detail |
|---|---|
| Full company name | Telstra Corporation Limited |
| Headquarters | Melbourne, Victoria, Australia |
| Founded | 1901 (as Postmaster-General's Department telecommunications; Telstra since 1993) |
| Stock | ASX: TLS |
| Primary SD-WAN product | Telstra Adapt S1 (SD-WAN embedded in Telstra core network); Telstra Managed SD-WAN (Cisco Catalyst SD-WAN) |
| Architecture | SD-WAN overlay on Telstra's core network with SASE stack; Cisco Catalyst SD-WAN primary platform; VMware SD-WAN Gateways in Telstra PoPs across Australia |
| SASE capability | Full — Adapt S1 integrates SASE architecture with SD-WAN on Telstra's network; cloud security partners including Zscaler; Internet Protection add-on with Cisco Meraki |
| SD-WAN capability | Full (managed and co-managed) — Cisco Catalyst SD-WAN and Cisco Meraki; 7,000+ SD-WAN devices deployed; LTE 4G/5G backup available |
| Target market | Australian enterprise and government; Asia-Pacific multinationals; organisations needing APAC-centric SD-WAN |
| Global reach | 225,000km fibre; 4G/5G to 98% of Australian population; 2,000+ PoPs in 230+ countries |
| Gartner position | Recognised in Gartner Peer Insights for Global WAN Services; top of GlobalData's WAN leaderboard for APAC |
What Netify Thinks
Telstra's strategic advantage in the SD-WAN and SASE market is its unique position as Australia's network: it operates the country's largest fixed and mobile networks, and its Adapt S1 service was the first in Australia to embed a SASE stack directly within a carrier's core network rather than as an overlay on third-party connectivity. For organisations operating primarily in Australia or across the Asia-Pacific region, Telstra offers connectivity, performance, and managed service quality that overseas carriers simply cannot replicate from local infrastructure.
Strengths
- First CSP in Australia to deliver SASE embedded in carrier network: Telstra Adapt S1 was engineered as a true network-integrated SASE service — Cisco SD-WAN Gateways are positioned directly within Telstra's core network PoPs across Australia, rather than as an overlay on third-party transit. This integration provides better performance and lower latency for Australian enterprise sites compared to cloud-only SASE approaches.
- Australia's most comprehensive network infrastructure: Telstra operates 225,000km of fibre, 4G/5G connectivity to 98% of the Australian population, and 2,000+ PoPs in 230+ countries. For Australian enterprise deployments, this coverage depth and resilience is unmatched by any competitor.
- 7,000+ SD-WAN devices deployed: Telstra's proven deployment track record across diverse Australian enterprise and government customers — including AGL Energy and Longreach Regional Council — provides implementation expertise and reference site depth.
- APAC market leadership: Telstra tops GlobalData's WAN leaderboard for APAC and is recognised by IDC as a leader in Asia-Pacific Next-Generation Telecom Services. For organisations with significant Asia-Pacific operations, Telstra's regional network and partnerships provide coverage and service quality advantages.
Weaknesses
- Primarily APAC-focused: Despite having 2,000+ PoPs globally, Telstra's managed service depth and premium quality is strongest in Australia and the broader APAC region. European and US-headquartered organisations may find BT, Orange Business, or GTT offer superior managed service support outside APAC.
- Not in Gartner SD-WAN or SASE Platform MQ: Telstra is not evaluated in the Gartner Magic Quadrant for SD-WAN or SASE Platforms. Enterprise buyers using Gartner MQ as a primary shortlisting tool need to consider Telstra based on APAC-specific analyst recognition (GlobalData, IDC) rather than global Gartner positioning.
- Competitive pricing for non-Australian sites: Telstra's competitive pricing advantage is most pronounced within Australia. International circuit pricing and managed service costs for non-APAC sites may be less competitive than local carriers.
Verdict: Telstra is best suited to Australian-headquartered enterprises and Asia-Pacific-centric multinationals that need Australia's most comprehensive network infrastructure as the foundation for managed SD-WAN and SASE — particularly organisations requiring LTE/5G backup, deep Australian coverage, and a carrier-integrated SASE deployment. It is less suitable as a sole global WAN provider for organisations with significant operations outside APAC.
Pros & Cons
Pros
- Australia's largest carrier — 225,000km fibre, 4G/5G to 98% of population
- First CSP in Australia to deliver SASE embedded in carrier core network (Adapt S1)
- 7,000+ SD-WAN devices deployed — proven APAC implementation track record
- GlobalData WAN leaderboard leader for APAC
- LTE/5G rapid activation while fixed carriage deploys — fastest provisioning in market
- 2,000+ PoPs in 230+ countries for global reach
Cons
- Primarily APAC-focused — less relevant as sole global WAN provider
- Not in Gartner MQ for SD-WAN or SASE Platforms
- International managed service depth varies outside APAC
- Competitive pricing advantage most pronounced within Australia
Frequently Asked Questions
What is Telstra Adapt S1?
Telstra Adapt S1 is Telstra's flagship managed SD-WAN and SASE service. It was the first commercially available CSP SD-WAN service in Australia to embed a SASE architecture directly within Telstra's core network — integrating Cisco Catalyst SD-WAN with SASE cloud security into a unified managed service. Cisco SD-WAN Gateways are positioned across Telstra's Australian network PoPs, providing lower latency and better performance than overlaying SD-WAN on third-party internet transit. Adapt S1 supports MPLS, internet broadband, and LTE/5G as transport options, with rapid LTE activation available while fixed-line circuits are provisioned.
Is Telstra suitable for UK or European enterprise deployments?
Telstra has global network reach (2,000+ PoPs in 230+ countries) and can provide SD-WAN and managed services for UK and European sites as part of a broader global estate. However, Telstra's managed service infrastructure, SLA depth, and pricing competitiveness is most mature in Australia and APAC. UK or European organisations wanting Telstra for UK/European-only estates should compare carefully against BT Business, Colt, Virgin Media Business, or GTT, which have stronger domestic UK and European infrastructure. Telstra is most compelling as a single provider for Australian-headquartered multinationals.
How does Telstra compare to Optus for Australian enterprise SD-WAN?
Both Telstra and Optus are major Australian carriers offering managed enterprise SD-WAN services. Telstra's differentiators include Australia's most extensive fibre network (225,000km), the highest 4G/5G population coverage (98%), and the Adapt S1 carrier-integrated SASE service. Telstra generally commands a premium pricing position relative to Optus. Optus can be competitive for cost-sensitive deployments with less demanding SLAs. Telstra is typically preferred for large enterprise and government deployments where network resilience, coverage depth, and managed service quality are primary requirements.
What SD-WAN and SASE vendors does Telstra partner with?
Telstra's primary SD-WAN platform is Cisco Catalyst SD-WAN (formerly Viptela), with Cisco Meraki available for smaller site deployments (Adapt Assured with Meraki). For SASE security, Telstra works with Zscaler for cloud security capabilities and offers Telstra Internet Protection with Cisco Meraki as a bundled security option. For broader SASE deployments, Telstra takes a vendor-neutral approach and can incorporate best-of-breed security partners based on customer requirements.
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