Introduction about Over the Top Services (OTT)
Over the Top Services (OTT) have fundamentally reshaped the way people communicate, consume content, and conduct business over mobile and fixed-line networks. The term “Over the Top” refers to any application or service that is delivered directly to the end user via the open internet, bypassing the traditional service delivery infrastructure of a telecom operator or Mobile Virtual Network Operator (MVNO). In other words, OTT services ride on top of the connectivity layer provided by operators without those operators having direct control over the content, service quality, or commercial relationship with the end user.
For MVNOs, understanding OTT is not optional. It is strategically essential. OTT platforms simultaneously represent the biggest competitive threat and the most powerful commercial opportunity available to a mobile brand today. Whether you are planning to launch a new MVNO, expanding an existing one, or exploring how to monetize your subscriber base more effectively, OTT services will sit at the center of your strategy. This page provides an in-depth, educational overview of what OTT services are, how they work, how they interact with core network elements, and what they mean for your MVNO business.
What are the details of an Over the Top Services (OTT)?
- History and Evolution of the Over the Top Services?
- Core Utility and Functionality of OTT
- Technical integration and data model
- OTT and MVNOs: Threat or Opportunity?
- Organizational impact of OTT on your MVNO?
- OTT business models for MVNOs
- Regulatory and net neutrality considerations
- Impact of 4G, 5G, and 6G on OTT Services
- Frequently Asked Questions about the Over the Top Services
- Summary
History and evolution of Over the Top Services
The concept of OTT services emerged in the mid-2000s as broadband internet access became widely available. Early pioneers such as Skype introduced internet-based voice calling that directly challenged traditional operator revenue streams. The mass adoption of smartphones after 2007, combined with the rollout of 4G/LTE networks, accelerated the growth of streaming video, messaging apps, and cloud-based communication platforms. By the early 2010s, services such as WhatsApp, Netflix, and YouTube had collectively reached hundreds of millions of users, turning OTT from a niche technology into the dominant mode of content and communication delivery worldwide.
Core Utility and Functionality of OTT Services
What are OTT Services Used For?
OTT services fulfill a broad range of communication, entertainment, and productivity functions that were previously the exclusive domain of traditional telecom operators and broadcast companies. They allow users to make voice and video calls, send messages, stream movies and music, watch live television, play online games, and access cloud-based business applications, all through a standard internet connection provided by any mobile network or broadband provider.
For the subscriber, the appeal of OTT is straightforward: high-quality, feature-rich services that are often free at the point of use or available at a flat monthly subscription fee, independent of the underlying connectivity provider. For the telecom operator or MVNO, the implications are more complex. OTT services consume significant quantities of mobile data, driving the need for capacity investment, while simultaneously cannibalizing traditional revenue streams such as voice calls and SMS. Understanding this dynamic is critical when you create a business plan for your MVNO.
Key Categories and Functions of OTT Services
OTT services can be grouped into several clearly defined categories, each with its own commercial dynamics and network requirements:
OTT Communication Services: This is the category that historically caused the most disruption to operator revenues. OTT messaging applications such as WhatsApp, Telegram, Signal, and iMessage replaced traditional SMS as the primary mode of text communication for the majority of mobile subscribers worldwide. OTT voice and video calling platforms such as WhatsApp Calls, FaceTime, Skype, Google Meet, and Zoom replaced a significant proportion of traditional circuit-switched and VoIP calls. For MVNOs, the commercial consequence is a structural reduction in per-subscriber voice and SMS revenue, making data plan monetization the primary revenue driver.
OTT Video Streaming Services: Subscription Video on Demand (SVoD) platforms such as Netflix, Disney+, Amazon Prime Video, and Apple TV+ are the largest consumers of mobile and fixed broadband data globally. Add-supported Video on Demand (AVoD) platforms such as YouTube and Pluto TV also generate enormous traffic volumes. Live OTT streaming of sports events, news, and entertainment represents one of the most bandwidth-intensive use cases on modern networks. These services are a primary reason why subscribers demand high-speed data plans, making them indirectly valuable to Media and Entertainment MVNOs that bundle streaming services as part of their subscriber proposition.
OTT Gaming Services: Cloud gaming platforms such as Microsoft Xbox Cloud Gaming, NVIDIA GeForce NOW, and PlayStation Now stream video game content directly to devices over the internet, requiring low-latency, high-bandwidth connections. Mobile gaming platforms with online multiplayer functionality also generate substantial real-time data traffic. For IoT and M2M operators, the rise of connected gaming devices presents additional opportunities.
OTT Business and Productivity Services: Enterprise OTT platforms including Microsoft 365, Google Workspace, Salesforce, and Slack deliver business applications over the internet to mobile and fixed-line subscribers. Unified Communications as a Service (UCaaS) platforms provide voice, video, messaging, and collaboration tools to businesses without requiring on-premise infrastructure. This category is particularly relevant for Business MVNOs that target corporate customers.
OTT Audio Streaming Services: Music streaming platforms such as Spotify, Apple Music, Amazon Music, and Deezer have replaced physical and downloaded music for the majority of consumers. Podcast platforms and internet radio services also fall into this category. Audio streaming is comparatively low in bandwidth consumption but high in session duration, making it a constant background consumer of mobile data.
Technical Integration and Data Model
How OTT Interacts with the Telecom Network
OTT services do not integrate directly with the core network elements of an operator or MVNO in the way that internal network functions do. Instead, they operate at the application layer of the internet protocol stack, using standard internet protocols such as HTTPS, WebRTC, QUIC, DASH, and HLS to deliver their services over any available internet connection.
The critical point of interaction between OTT and the telecom network is at the data plane: specifically at the Packet Data Network Gateway (PGW) in a 4G network and the User Plane Function (UPF) in a 5G network. These elements are the gateways through which all subscriber data traffic, including OTT traffic, exits the mobile core and enters the public internet. The Policy and Charging Rules Function (PCRF) or its 5G equivalent, the Policy Control Function (PCF), is the key network element that enables operators and MVNOs to apply differentiated policies to OTT traffic, such as zero-rating specific services, throttling streaming after a data threshold, or applying Quality of Service (QoS) profiles to real-time communication traffic.
The Online Charging System (OCS) works in conjunction with the PCRF/PCF to ensure that data consumed by OTT applications is correctly metered and billed in real time. For MVNOs offering bundled OTT data packages, the OCS is the system that implements the commercial rules around those bundles, enforcing fair use policies and triggering top-up notifications.
Deep Packet Inspection (DPI) technology, often integrated with the Serving Gateway (S-GW) or the PGW/UPF, allows operators and MVNOs to identify and classify OTT traffic at the application level. This capability is the technical foundation for zero-rating, traffic shaping, and analytics-driven subscriber management.
Technical Infrastructure Behind OTT Delivery
OTT providers invest heavily in their own technical infrastructure to ensure reliable, high-quality service delivery at global scale. The key components of OTT technical infrastructure include the following:
Content Delivery Networks (CDNs): Large OTT providers operate or lease CDN infrastructure to cache content geographically close to end users, reducing latency and backbone transit costs. When a subscriber in a given region streams a video, they are typically served from a CDN node located within or near that region, rather than from a central origin server.
Adaptive Bitrate Streaming (ABR): Video OTT platforms use ABR technologies such as MPEG-DASH and Apple HLS to dynamically adjust video quality based on the available network bandwidth. This means that a subscriber on a congested mobile network will automatically receive a lower video resolution rather than experiencing buffering, providing a better user experience while consuming less network capacity.
WebRTC and QUIC Protocols: Real-time OTT communication services such as video calls and interactive gaming use WebRTC and the QUIC transport protocol to minimize latency and maintain connection quality over mobile networks, even in environments with packet loss or variable signal strength.
Cloud-Native Architecture: Modern OTT platforms are built on cloud-native microservices architectures, allowing them to scale elastically with demand and deploy globally across multiple cloud regions. This architectural approach directly mirrors the direction of the telecom industry itself, as seen in the cloud-native 5G Core (5GC) architecture.
OTT and MVNOs: Threat or Opportunity?
Why OTT Matters for MVNOs
The relationship between OTT services and MVNOs is one of the most strategically important and commercially complex dynamics in the mobile industry today. On one hand, OTT services have permanently eroded traditional voice and SMS revenues, forcing MVNOs to compete primarily on data plan pricing and data volume. On the other hand, OTT services have become the primary driver of data consumption and subscriber engagement, creating genuine opportunities for MVNOs that understand how to position themselves in the value chain.
The most successful MVNOs today are those that have moved beyond simply reselling connectivity and have built differentiated propositions that incorporate OTT services into their subscriber offering. This is particularly visible in the Media and Entertainment MVNO segment, where brands bundle streaming services directly into their mobile tariffs, and in the Lifestyle MVNO segment, where niche OTT apps aligned with a specific community provide genuine differentiation. Even Discount MVNOs benefit from OTT, as the widespread availability of free messaging and calling apps reduces the need for subscribers to pay for traditional voice and SMS bundles, shifting the competitive focus entirely to data pricing.
If you are planning to start your own mobile brand, determining your OTT strategy at the business planning stage is not optional. It is foundational. The marketing plan and financial plan for any new MVNO must account for OTT-driven data demand, OTT partnership opportunities, and the ongoing revenue impact of OTT substitution.
Advantages and Disadvantages of OTT for MVNOs
Subscriber Retention: Bundling popular OTT services such as a streaming platform or music app directly into a mobile tariff significantly increases subscriber stickiness and reduces churn, one of the most expensive operational challenges for any MVNO.
Differentiation: An exclusive or preferential OTT partnership gives an MVNO a compelling reason to switch that goes beyond price, which is particularly powerful in saturated, price-competitive markets.
Data Revenue Growth: OTT services are the primary driver of mobile data consumption. Higher data usage translates directly into higher revenue per subscriber when tariffs are correctly structured.
Brand Alignment: For niche and lifestyle MVNOs, aligning with an OTT platform that serves the same community creates immediate brand credibility and organic marketing opportunities.
Customer Engagement: OTT apps and platforms provide ongoing touchpoints with the subscriber, increasing brand presence and providing valuable behavioral data for customer care and retention strategies.
Zero-Rating Opportunities: Partnering with an OTT provider to zero-rate their service within a mobile tariff is a proven commercial model that drives both subscriber acquisition and platform adoption.
Revenue Cannibalization: Every minute a subscriber spends on a WhatsApp call or a messaging app is a minute they are not using billable voice or SMS services, directly impacting traditional ARPU.
Network Capacity Pressure: OTT video streaming in particular generates enormous data volumes that require ongoing investment in network capacity, backhaul, and interconnection, costs that are borne by the operator while the revenue accrues to the OTT provider.
Negotiation Complexity: Securing favorable OTT bundling agreements requires commercial leverage that smaller MVNOs may lack, and the terms offered by major OTT platforms can significantly affect the financial viability of a bundle.
Dependency Risk: Building a subscriber proposition around a single OTT partnership creates commercial dependency. If the OTT provider changes its pricing or partnership terms, the MVNO’s value proposition is directly affected.
Regulatory Exposure: Zero-rating and traffic prioritization arrangements are subject to net neutrality regulations that vary by market. MVNOs must ensure that any OTT commercial arrangements comply with local regulatory requirements.
Organizational impact of OTT on your MVNO
Adopting an OTT-integrated strategy has wide-ranging organizational implications for an MVNO across every functional area.
Operational Impact: The BSS (Business Support System) must be capable of managing complex bundle entitlements that combine traditional voice, SMS, and data with OTT-specific allowances such as zero-rated data volumes or subscription pass-through billing. The OSS (Operational Support System) must provide network teams with real-time visibility into OTT traffic volumes to enable proactive capacity management and quality assurance.
Financial Impact: The financial model of an OTT-integrated MVNO is fundamentally different from that of a traditional connectivity reseller. Revenue streams may include direct OTT subscription pass-through margins, zero-rating partnership fees, data uplift from bundled plans, and reduced churn costs. MVNOs should invest time in building a detailed financial plan that models these revenue streams alongside the cost of OTT content licensing and network capacity investment.
Customer Care Impact: OTT services frequently generate complex customer care scenarios where the boundary between a network issue and an application issue is unclear to the subscriber. Equipping customer care teams with the knowledge to triage OTT-related issues and coordinate with OTT provider support teams is essential. A well-structured customer care strategy must address OTT escalation paths explicitly.
Technical Impact: Enabling OTT differentiation at the network level requires investment in DPI capabilities, PCRF/PCF policy rules, and OCS charging configurations. MVNOs using a hosted or shared core network provided by an MVNE (Mobile Virtual Network Enabler) must verify that the MVNE’s infrastructure supports the policy enforcement capabilities required for their OTT strategy.
OTT Business Models for MVNOs
There are several proven commercial models through which MVNOs can integrate OTT into their business, each suited to a different type of MVNO and target market.
The Bundled Subscription Model is the most common approach. The MVNO licenses content or access from an OTT provider and includes it as part of a mobile tariff at a fixed monthly price. This model works particularly well for Media and Entertainment MVNOs and Lifestyle MVNOs targeting communities with strong content affinity.
The Zero-Rating Model allows the MVNO to exempt specific OTT services from the subscriber’s data allowance, making them effectively free to use regardless of the subscriber’s remaining data balance. This model drives engagement with partner OTT platforms and is a powerful acquisition and retention tool, subject to applicable net neutrality regulations in the relevant market.
The White-Label OTT Model is an advanced strategy in which the MVNO deploys its own branded OTT application, typically for messaging, calling, or content delivery, powered by a white-label technology provider. This model gives the MVNO full control over the subscriber experience and generates proprietary data on subscriber behavior. The power of a dedicated mobile app for subscriber engagement is well established and represents one of the most effective ways for an MVNO to build a direct, data-rich relationship with its customers.
The Pass-Through Billing Model enables the MVNO to act as a billing intermediary for OTT subscriptions, allowing subscribers to add OTT services to their mobile bill. This simplifies the subscriber’s billing experience and provides the MVNO with a small but recurring commission on each subscription.
The Quad Play Model combines mobile connectivity with fixed broadband, television, and OTT content in a single bundled offer. This approach is particularly effective for operators targeting household subscribers and is explored in depth in our guide to Quad Play MVNOs.
Regulatory and Net Neutrality Considerations
The relationship between OTT services and telecom regulation is one of the most actively debated topics in the global telecoms industry. Net neutrality regulations, which require operators to treat all internet traffic equally regardless of its source or destination, directly constrain the commercial models available to MVNOs when structuring OTT partnerships.
In the European Union, the Open Internet Regulation generally prohibits zero-rating arrangements that disadvantage competing services, although the precise interpretation varies across member states. In the United States, the regulatory position on net neutrality has shifted multiple times and remains contested. In many emerging markets, zero-rating arrangements are actively used as tools to drive digital inclusion and are treated more permissively by regulators.
MVNOs operating across multiple markets must conduct a careful regulatory assessment before implementing any OTT-based commercial arrangement. Engaging with telecom consultancy services experienced in regulatory compliance across your target markets is strongly recommended before launching an OTT-integrated tariff.
The rise of OTT has also prompted ongoing regulatory discussions about whether large OTT providers should be required to contribute financially to the network infrastructure investment that makes their services possible, sometimes referred to as the “fair share” debate. The outcome of this debate will have long-term implications for the commercial relationship between OTT providers and mobile operators, including MVNOs.
Impact of 4G, 5G, and 6G on OTT Services
OTT in the 4G Era
The Evolved Packet Core (4G/LTE) was the first network generation capable of delivering OTT services at the quality levels required for mass-market video streaming and real-time communication. The combination of high throughput, manageable latency, and widespread coverage made 4G the platform on which the OTT industry achieved global scale.
OTT in the 5G Era
The 5G Core (5GC) introduces capabilities that will fundamentally enhance the quality and diversity of OTT services available to mobile subscribers. Network slicing allows operators and MVNOs to create dedicated virtual network segments with guaranteed quality of service for specific OTT applications, making it possible to offer premium OTT experiences with contractually assured performance. Ultra-low latency, achieved through 5G’s advanced radio and core architecture, is the enabling condition for new categories of OTT service including cloud gaming, extended reality (XR) applications, and real-time collaborative tools that are not viable on 4G networks. For MVNOs, the potential of 5G to enable differentiated OTT offerings represents one of the most significant commercial opportunities of the coming decade.
OTT and 6G
As the industry begins to define the 6G standards horizon, the relationship between connectivity and OTT services is expected to become even more deeply integrated. 6G architectures are anticipated to embed intelligence at the network edge, enabling personalized, AI-driven OTT experiences that adapt in real time to individual subscriber behaviour and network conditions. The concept of the network as a neutral transport pipe is likely to give way to a model in which the network itself participates actively in optimizing the end-to-end OTT service experience, with significant implications for how MVNOs position themselves in the value chain. Artificial Intelligence already plays a growing role in mobile brand strategy, and its intersection with OTT service delivery will only deepen as network and application architectures converge.
Frequently Asked Questions about the Rich Communication Services (RCS)
What are Over-The-Top (OTT) services?
OTT services deliver content and communication over the internet without relying on traditional telecom infrastructure.
Examples of OTT services?
Examples include streaming platforms, messaging apps, and VoIP services.
How do OTT services impact MVNOs?
OTT services can reduce traditional revenues but also create opportunities for partnerships and new services.
Do OTT services require internet access?
Yes, OTT services rely on internet connectivity via mobile data or Wi-Fi.
Can MVNOs monetize OTT services?
Yes, through bundling, partnerships, and value-added offerings.
Are OTT services regulated?
OTT services are subject to varying regulatory and net neutrality frameworks depending on the region.
Summary
Over the Top Services (OTT) represent the most transformative force in the global mobile industry over the past two decades. For MVNOs and IoT operators, OTT is simultaneously the primary driver of data revenue growth and the most significant threat to traditional voice and messaging income streams. The MVNOs that succeed in this environment are those that develop a clear, deliberate OTT strategy integrated into every dimension of their business, from their tariff design and marketing approach to their core network policy capabilities and customer care operations.
The arrival of 5G and the emerging 6G horizon will expand the OTT opportunity further, enabling new service categories and new commercial models that do not yet exist. MVNOs that invest in the network capabilities, commercial partnerships, and organizational knowledge required to navigate the OTT landscape will be positioned to build durable, differentiated businesses that go far beyond the commodity connectivity market. Whether you are evaluating a bundled content MVNO, a quad play proposition, or a white-label app strategy, understanding OTT in depth is the starting point for building a mobile brand that competes effectively in today’s connected world.
Value Added Services (VAS)
