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Cellular Bonding for Event Broadcasting and Video Streaming

5 min read
Jan 15, 2024 12:47:52 PM

Live broadcasting and video streaming require substantial data bandwidth to ensure high-quality, uninterrupted streaming experiences. Relying on a single SIM in the router can be a gamble. During a live event, buffering, poor video quality, or a dropped connection during a critical moment aren't just minor hiccups–they're potential deal-breakers. 

Single SIMs often fail to meet the necessary speed and reliability standards for broadcasting. Cellular bonding using a multi-SIM router addresses this issue by leveraging multiple SIMs from the same or different carriers to create a stronger connection. This approach amplifies the bandwidth for streaming and introduces network redundancy.

At Zipit Wireless, we provide the SIMs and connectivity solutions integral to cellular bonding. In the following sections, we'll explore the technical aspects of cellular bonding, its advantages for live broadcasting and video streaming, and how Zipit can support your connectivity needs. 

What is cellular bonding?

Cellular bonding creates multiple cellular connections through two or more SIM cards in a modem or router. These SIMs can either be from a single carrier or multiple carriers. Cellular bonding combines these connections for a single, more powerful internet connection. This method is beneficial in environments like remote broadcasting or live streaming where a single connection does not provide sufficient bandwidth or reliability.

In cellular bonding, all connections are always active. This continuous activity provides a constant, uninterrupted flow of data. In live streaming, where even a brief loss of connectivity can disrupt the viewing experience, always-active connections ensure a smoother, more reliable stream. 

Cellular bonding also supports automatic network switching, which allows systems to switch between networks seamlessly depending on performance. For instance, if one network becomes congested or loses signal strength, the system automatically reroutes data to the other active connections without manual intervention. This capability ensures that the broadcast or stream remains stable even in the face of fluctuating network conditions.

By combining the bandwidths of multiple cellular connections through a process called bandwidth aggregation, cellular bonding allows for a much higher data throughput than a single connection. Video streaming and live broadcasting require high data rates to maintain good quality, especially when broadcasting in high definition, making increased bandwidth essential. 

How does cellular bonding with multiple SIMs work?

By combining the bandwidths of multiple cellular connections, the bonded modem provides an internet connection that is faster and more reliable than an individual SIM could offer. A router or modem with multiple SIMs splits, distributes, and recombines data across multiple cellular connections, enhancing internet speed, reliability, and redundancy. 

Bonded modems are equipped with slots for multiple SIM cards. These SIMs can be from the same or different cellular networks. Each SIM card establishes an independent cellular data connection. Each connection links to its respective cellular network, accessing each network's unique bandwidth and coverage.

When data is transmitted or received, the bonded modem's software splits the data into smaller data packets to optimize the transfer over multiple channels by increasing the data throughput capacity.

The bonded modem continuously monitors the performance of each cellular connection and dynamically adjusts the load to optimize the overall speed and reliability. For example, if one connection becomes weaker or congested, the router will shift more data to the other connections.

Using single vs. multiple carriers in a bonded modem

SIMs from multiple carriers

Using multiple SIMs from different carriers can potentially improve redundancy during an outage of one carrier network. For instance, if one carrier's network faces unexpected downtime or maintenance issues, the other networks can seamlessly take over and maintain the broadcast's integrity. 

Additionally, different carriers may have unique peak times and congestion patterns. By distributing the load across these varied networks, you can mitigate the risks associated with network saturation, ensuring a more reliable streaming experience.

SIMs from a single carrier

Using multiple SIMs from a single carrier can enhance data transmission speed through bandwidth aggregation. This process involves combining the individual bandwidth capacities of each SIM card to create a larger, unified channel for data transmission. For instance, if each SIM offers a 10 Mbps connection, using three SIMs together can increase the total available bandwidth to 30 Mbps. 

Additionally, bandwidth aggregation through a single carrier ensures that all SIMs will likely be equally compatible with the network's infrastructure and technologies for a more stable and efficient connection.

Benefits of cellular bonding

Faster transfer speeds

By aggregating the bandwidth of multiple cellular networks, cellular bonding significantly increases overall data transfer speed. This is especially beneficial for bandwidth-intensive applications like live video streaming or large data uploads and downloads. 

Reliable connectivity

Cellular bonding enhances the reliability of internet connections. Using multiple SIM cards from different networks ensures that the others can compensate if one network experiences congestion or signal loss. 

Improved coverage

In areas where one network might have a weak signal, another might have a stronger presence. Cellular bonding ensures that internet connectivity is maintained even as you move through different areas with varying network strengths.


With cellular bonding, the failure of one connection doesn't lead to total loss of internet access. The system continuously monitors each connection's performance and automatically reroutes data to the remaining networks if one network fails. 


Cellular bonding operates independently of fixed-line connections. This mobility makes it exceptionally suitable for on-site news reporting or outdoor events. It ensures continuous, reliable connectivity even in environments where traditional fixed internet access is not feasible.

Cellular bonding vs. backup internet

While cellular bonding offers redundancy through its multiple cellular connections, it's distinct from traditional backup internet. Redundancy in cellular bonding is designed to enhance the reliability and stability of a single internet connection by having multiple connections active simultaneously. If one network experiences issues, the others can compensate to maintain continuous connectivity. 

However, backup internet typically involves a separate connection method, like a wired to a wireless link. Backup remains inactive under normal conditions but activates when the primary method fails, providing a fail-safe rather than the enhanced throughput characteristic of cellular bonding.

Get connected with Zipit Wireless

If you're considering cellular bonding for your broadcasting or streaming needs, Zipit Wireless can offer you connectivity solutions specific to your unique requirements.

We provide top-tier SIMs from major carriers globally to back your cellular bonding setup reliably. Our choice of diverse carriers can help create a bonded network that’s fast and resilient against network failures, giving you the continuous, uninterrupted service crucial for live broadcasting.

We simplify the management of these connections through an intuitive platform for easy activation and oversight of your devices and data. Zipit’s connectivity platform allows you to manage multiple connections for optimal performance without added complexity. With Zipit Wireless, you gain a partner who understands the nuances of cellular bonding and offers the necessary tools and support to ensure its success.

Connect with a cellular connectivity expert to learn more. 

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