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What Is The ISDN?

ISDN stands for Integrated Services Digital Network and was developed in the 1980s at Bell Labs. It was developed as a worldwide standard for a digital communication network to transmit voice, video, data, and other network services via the digital aspects of the PSTN (Public Switched Telephone Network)

While it found some uptake, particularly in specific localities, on the whole the ISDN was quickly replaced by faster, more high performing technologies such as DSL (Digital Line Subscriber). The ISDN also found some niche markets, for example, for small business digital connections whereby the voice lines were used to transport data including IP voice.

These days, the ISDN is pretty much obsolete and has been either switched off or is currently being phased out in most countries. As a result, most businesses have already made the switch to faster, more reliable IP technologies and are now enjoying the benefits of Voice over IP (VoIP) telephony and modern collaboration tools made available via the Cloud.

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Philipp Meixner, CEO
As a communications agency with just under 20 employees, the pascom phone system is perfect for us. The technical concept simply functions, which is what you want. The service is exceptional and always accessible (even if it is rarely needed) and as one of the agency’s business partners, we can only recommend pascom: open, straight forward, pleasant to work with - great. Thank you pascom!


Stephan Förderung, CEO
We chose pascom because their phone systems offer a sleek, easy to use UC client and administration UI whilst providing us with all the PBX and UC features, control and visibility that we could possibly need from our business communications solution. As a result of our excellent experience, we are happy to recommend pascom phone systems to all our customers.


Lars Hoeger, IT Director
When we make decisions regarding new systems, we want to make sure that we have both reins firmly in our hands. Therefore, it is essential to implement systems which adhere to OpenStandards, allowing us to seamlessly connect and integrate these to our existing systems. In addition, we require reliable suppliers, who are ready to customise their solutions to our requirements, which is why we chose pascom who offer exactly this service and more.


Kassandra Martin, Deputy Director & Reception Manager
We chose pascom as our telephony solution in part due to the scalability, flexibility and ease of deployment. In addition, the pascom platform functions perfectly with our digital guest directories in our rooms whilst offering the largest range of features at easily the most cost effective price compared to alternative solutions. A further deciding factor was the wide choice of compatible hardware that choosing pascom afforded us.

Wake & Camp Ruhlsdorf

Markus Gerlitzki, Managing Director
My team and I pride ourselves on the level of excellent care we provide our guests. However, it can be distracting when the phone is always ringing and we constantly answer the same questions. Thanks to the pascom phone system, we have been able to setup an automated self-service hotline which allows guests to quickly get answers and if required callers can be quickly and efficiently routed to an an employee. The system greatly improves customer service with around the clock answers around opening times and courses and therefore reduces the strain on employees, ensuring we are free to cater to the needs of our on-site guests.

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