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Discover how Halleyx Founder and CEO Ayswarya Ashok uses TM Forum open APIs to unify product, ordering, customer, and billing processes, helping telecom operators simplify operations, reduce errors, and accelerate service deployment.
My API Story: How Halleyx uses TM Forum open APIs to simplify telecom BSS
Halleyx is an API-first SaaS BSS platform built for telecom operators. It replaces traditional multi-system stacks by acting as the single system of record for product, order, customer, and billing.
Instead of relying on integrations between loosely coupled systems, Halleyx enforces a single operational model using TM Forum Open APIs. This ensures that services can only be sold if they are deliverable and billable.
The platform supports both Tier-1 operators and regional ISPs, enabling faster service launches, fewer operational errors, and a more predictable path from product definition to live deployment.
I’m the Founder and CEO of Halleyx.
I started my career as a software engineer, which still influences how I think about systems, but my current focus is on running and scaling the company. I work directly with telecom operators to understand how their systems behave in production, and where gaps emerge between product design and real operations.
I lead decisions on product direction and priorities, and I’m also involved in enterprise deals and deployments where real customer requirements often challenge initial assumptions.
My focus is keeping Halleyx grounded in solving real telecom operational complexity, not just abstract system design!
Because this is exactly where most deployments fail.
Most issues in telecom don’t originate in the network; they start in how products, orders, customers, and billing are modeled and managed. When these domains are disconnected, errors propagate across the entire lifecycle.
TMF620–622–632–629–678 provide the structure to unify these domains. They allow operators to define, sell, and charge for services using a consistent framework, reducing ambiguity and making system behavior easier to control and reason about.
We use TMF620 to define product structures, including availability and configuration. TMF622 manages order lifecycle and drives downstream actions. It connects with TMF641 to trigger provisioning workflows such as service activation.
TMF632 and TMF629 maintain party and customer data, ensuring consistency across interactions. TMF678 handles billing logic, including recurring and usage-based charges.
All components operate within an event-driven model. Changes in one domain such as order status → trigger corresponding updates in provisioning and billing. This removes the need for manual coordination and ensures that system behavior remains synchronized across functions.
Using TM Forum APIs allows us to standardize how systems are structured across different deployments.
For large operators, this simplifies integration with existing OSS/BSS components by avoiding custom data mappings. For smaller providers, they provide a ready-made structure that eliminates the need to design systems from scratch.
We’ve seen shorter deployment cycles and fewer post-launch corrections (especially in greenfield projects), particularly in order handling and billing accuracy. The APIs also make it easier to introduce new services without reworking core system behavior.
Overall, they provide a stable foundation that supports both initial rollout and long-term system evolution.
We use TM Forum Open APIs in live deployments across Canada and the United Kingdom, supporting both Tier-1 operators and regional fiber ISPs.
Deployments vary in scale. From multi-region networks to smaller, single-operator environments; but follow the same core model. Differences are primarily in volume, existing system landscape, and rollout complexity.
This consistency allows us to apply the same architecture across geographies without redesigning core workflows, while still adapting to local operational and regulatory requirements.
Yes. In fiber deployments, we commonly use:
These APIs support service activation, network capacity tracking, and management of physical infrastructure.
We also integrate with GIS systems for address validation and network mapping, along with OSS platforms responsible for provisioning and device activation.
Together, these systems extend the TMF model into the network layer, allowing commercial actions like placing an order → to directly trigger the required service and resource changes.
Because telecom systems need shared structure, not just connectivity.
TM Forum APIs define how key domains interact, making system behavior more consistent and easier to manage. Without that structure, integrations become brittle and difficult to scale.
They also create a common language across vendors and operators, which reduces ambiguity during implementation.
For us, they provide a practical foundation for building systems that can evolve without constant rework.
