High-performance networking between Germany and China with SD-WAN

Trusted Advisor for IT & Telecommunications Sourcing

SD-WAN from SAVECALL & China Telecom – legally compliant, fast, without expensive MPLS lines

Why this decision is important for globally operating companies

When international locations, teams and applications are not reliably connected, it costs time, money and trust. Sluggish cloud applications, dropped calls and different network qualities have a direct impact on productivity and collaboration.

Regulatory requirements, fluctuating internet quality and high latency are exacerbating these challenges, especially between Europe and mainland China. Traditional Internet routes and rigid MPLS structures quickly reach their limits here and become both expensive and inflexible.

With the right connection, you can create a reliable, legally compliant basis for stable business processes, high-performance cloud access and smooth collaboration across national borders.

What you gain with the right decision

Fewer outages, less frustration: predictable connectivity with clearly defined SLAs
Consistent quality: optimized paths for collaboration, VoIP, applications and cloud services
Better user experience: fast response times even between Europe and mainland China
Scalability: bandwidths and setups grow flexibly with your requirements

In the following, we will show how Savecall and China Telecom are implementing a tried-and-tested, legally compliant SD WAN solution and in which scenarios it can usefully replace or supplement traditional MPLS approaches.

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SAVECALL and China Telecom

China is a strategic market for many companies – but if you want to reliably connect locations, teams and applications between Europe and mainland China, you face special conditions: strict regulations, changing quality levels in the public internet, latency and occasional packet loss. Traditional workarounds only help to a limited extent – and pure MPLS topologies quickly become costly and inflexible.

Savecall and China Telecom offer a tried-and-tested alternative: a legally compliant, licensed SD-WAN overlay based on the China Telecom platform, planned, procured and orchestrated by Savecall in a vendor-neutral manner. The goal: noticeably better performance between German and Chinese locations, without expensive MPLS lines – plus fast, stable access for Chinese branches to European cloud workloads (e.g. AWS, Azure) and high-performance access for business travelers in China to content in Europe.

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What makes this solution stand out

Legally compliant & certified: Use of licensed infrastructure in mainland China – compliant with the requirements of the Chinese authorities.
Without MPLS constraints: SD-WAN overlay uses the Internet, Ethernet and any existing MPLS – flexible, cost-efficient, scalable.
Noticeably better user experience: optimized paths for collaboration, VoIP, file/app access and cloud services.
Fast provision: typically from a few weeks, depending on location and access.
PoC/testing possible: validate paths, latencies and policies before rollout.

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Typical application scenarios

1 Location-to-location (DE ↔ CN):

Networking of headquarters, plants, offices and R&D locations – without costly MPLS area networks.

2 China locations → European clouds:

Access from China to AWS or Azure regions in Europe (e.g. Frankfurt, Ireland), prioritized and stable – ideal for M365, SAP, PLM & Co.

3 Business travel in China:

Traveling employees use approved, high-performance access in China and reach applications/content in Europe with predictable quality.

How it works
(short & clear)

SD-WAN = Overlay: A software-controlled layer distributes and prioritizes traffic via existing underlays (DIA/broadband, xDSL, 5G, Ethernet, optional MPLS).

China Telecom provides the platform, PoPs and the licensed network backbone in mainland China as well as CPE/gateway components.
Savecall plans, sources and orchestrates end-to-end: design, offer/contract, project management, reporting – one point of contact.

The result: less jitter and loss, controlled latencies, resilient active/active topologies and clear escalation paths – without rigid MPLS cost structures.

Architectural highlights

Multiple paths & routes: sea/land routes, prioritized transfer points, intelligent traffic engineering.
Local breakouts (where appropriate and compliant): in mainland China, Hong Kong and Europe – for SaaS such as M365, Teams, Zoom.
Application-Aware Policies: Prioritization of business-critical applications, granularly controllable.
Integrated security: Client separation, firewalling, IDS/IPS, content controls; overlay encryption plus optional customer-specific end-to-end encryption.

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Advantages over pure MPLS

Cost efficiency: Internet underlays + SD-WAN instead of comprehensive MPLS ports.
Agility: connect locations faster, dynamically adapt bandwidths, bring temporary sites live quickly.
Resilience: Active/Active across multiple access types, automatic failover, higher availability.
Cloud proximity: More direct, prioritized paths to AWS/Azure in Europe – noticeable for M365, SharePoint, OneDrive, SAP and more.

Compliance that works

All components of this solution are based on certified infrastructure licensed in China. No unauthorized private VPN bypasses are used. Policies, encryption and segmentation are designed to meet security and compliance requirements in China and Europe.

Exemplary target corridors (project-specific)

Latency: consistent, usage-related values on prioritized paths (e.g. China ↔ DE).
Packet loss: typically low (< 1 %) on defined routes.
Provision: from a few weeks – depending on access, location and permits.
(Specific KPIs are agreed and measured in the PoC).

Project process in 6 steps

1 Recording of requirements

Locations, applications, cloud targets, compliance.

2 design variants

2-3 architecture options with budget framework.

3 PoC/test position

Validate paths, policies and KPIs.

4 Rollout plan

Phases, acceptance criteria, runbook.

5 Commissioning

Monitoring, reporting, transfer to regular operation.

6 Operation & optimization

Regular reviews, capacity/policy fine-tuning.

Next step

Send us a brief description of your locations, critical applications and cloud objectives. We deliver a compact design sketch with 2-3 variants including a cost framework and PoC proposal – for high-performance Germany-China networking without expensive MPLS lines and with legally compliant implementation.

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