Why today’s buildings are moving away from standalone intercoms towards integrated IP communications:
Intercoms used to be just a device that unlocked a door after a quick conversation. Today, things are different.
Modern buildings need intercoms to be part of interconnected webs of technology. Access control, CCTV, VoIP telephony, mobile devices, cloud services – businesses expect them all to work together seamlessly.
This shift from isolated solutions to integrated ecosystems has made SIP intercoms an increasingly popular choice.
But what exactly is a SIP intercom, and what makes it installers’ preferred option for commercial building projects?
What is a SIP intercom?
SIP stands for Session Initiation Protocol. It’s a widely used communications protocol that was originally intended for business phone systems.
Intercoms that use SIP technology become another device on the building’s IP network.
They’re not a standalone door entry system that only opens one door. Instead, they operate like another connected phone on the same system as all the others.
Traditional intercoms are isolated systems, usually with one dedicated handset that receives calls. Integration is challenging, and capacity for expansion severely limited.
In contrast, SIP intercoms are connected to building-wide IP networks. Calls can be answered on desk phones, mobiles, softphones, even apps like Microsoft Teams. They integrate with other building systems and scale easily as businesses grow.
One network, multiple systems
For modern buildings, different systems operating in isolation are a pain. They require time and effort to manage separately, and human intervention to monitor and analyse between systems.
Today, businesses expect everything to work together.
Instead of maintaining separate access control and intercom solutions, organisations want to route intercom calls through the same infrastructure as other phone calls. They want staff to speak to visitors from desk phones or mobile devices, opening doors remotely.
The same is true of video management systems (VMS). It’s not helpful if intercom video is stored somewhere separate from other CCTV footage. With SIP technology, everything can be kept and monitored together, saving time and improving security visibility.
For even more advanced automation, HTTPS events or API integrations allow SIP intercoms to send secure notifications whenever calls or access events occur. These notifications can trigger actions in third-party applications like access control or building management platforms. This helps businesses to automate processes and create more connected security ecosystems.
Supporting hybrid working
Operationally, SIP intercoms mean freedom. Particularly since COVID lockdowns, more and more people work from home at least some of the week. With traditional intercoms, that would be impossible. A staff member would need to be on-site sitting by a dedicated desk phone to answer intercom calls.
SIP technology adds intercoms onto the wider building network. And that means calls can be answered from anywhere that’s connected to that network. That could be individual staff members in the building, call or hunt groups on mobile devices, or home-based workers using Microsoft Teams.
Flexibility is the key to businesses that grow and adapt to a rapidly changing world.
Better for future expansion
Businesses change. They grow, shrink, move, add doors, change floors – they evolve in countless ways over time. One of the core benefits of SIP intercoms is that they evolve alongside the business.
As they’re part of the wider IP network in a building, new SIP intercoms can be added easily. It doesn’t need ripping and replacing every time the business expands. There’s no need for specialist infrastructure or training, and retrofitting is simple.
In addition, as SIP is a widely-used protocol, integration remains easy even when new elements are added to the ecosystem.
SIP technology means flexibility and adaptability to whatever a business needs at the time.
Security matters too
When intercoms are connected to the whole building’s network, security is imperative. Isolated systems make day-to-day admin difficult, but connected systems make the security risks even more important to mitigate.
Encryption and secure communications are essential for protecting calls on SIP intercoms. We recommend devices like Robin intercoms that operate using Secure SIP, so call signalling data is robustly protected. Keeping devices up to date with the latest firmware also ensures optimal security.
Another important factor to consider in the coming months is the EU Cyber Resilience Act. This new regulation is introducing strict requirements for connected devices sold in the European Union – and the UK is likely to follow close behind.
Among other things, the CRA puts forward an expectation that products are built with a security-first mindset. Manufacturers will be committed to providing long-term software support and demonstrating that devices are protected against common cybersecurity threats. Fortunately, Robin intercoms are already secure by design, ready for the new regulations well in advance, and with all servers based in Europe.
Why installers prefer SIP
For installers, SIP intercoms are an easy preference. It’s a standard protocol that they’re already familiar with – so no proprietary wiring or bespoke training needed. Both power and network are delivered in a single Cat6 cable, which already means at least half the work for running cables.
With SIP, installs are quicker, maintenance is easier, and there’s scope for easy expansion and scalability in the future.
Why SIP intercoms are the obvious choice for modern buildings
Modern security is no longer made of disparate, isolated systems. It’s built around interconnected systems that are constantly communicating.
The goal is to improve operational efficiency and adapt as buildings evolve. SIP intercoms are a natural fit for this approach.
They give organisations a flexible communications platform that integrates seamlessly with existing infrastructure while supporting future growth.
Solutions like Robin intercoms combine Secure SIP communications, premium hardware, and broad integration capabilities to help organisations build a more connected and future-proof security ecosystem.
To learn more about Robin intercoms, browse our products or book a meeting with our sales team.
