Advantages of Getting ISDN Phone Plans for Your Company

For businesses, there are often only two choices for landline: PSTN and ISDN. Both have their own advantages and disadvantages, and choosing which of the two you should get depends on the state of your business. In a nutshell, PSTN phone plans are for smaller companies and supply only one phone line using a single number. ISDN phone plans on the other hand allow multiple channel transfer per line and is suitable for medium to large companies.


PSTN, short for Public Switched Telephone Network, is traditionally used by companies which are fairly new as it is a cheaper option if you are only getting one or two phone lines. With a PSTN phone system, the line could only be used for one purpose, thus if you are receiving a call you would not be able to use it to transfer data and vice versa. PSTN also have a much lower bandwidth than ISDN, thus data transfer is slower in the former.

ISDN, or Integrated Services Digital Network, uses digital lines as opposed to PSTN’s analog lines, thus enables you to use one telephone line to carry both voice and data. Larger companies tend to use this phone system as it is way cheaper to get a multiple line ISDN network than a PSTN network with the same number of lines. It is also preferred because it has a much greater bandwidth, thus making them suitable for businesses which needs faster data transfer and reliable video conferencing. In an office with 20 employees where half uses the phone line, you would need 20 PSTN lines as compared to 10 ISDN lines, making an ISDN network much more cost-effective than a PSTN network. Here are the advantages of getting an ISDN phone plan for your company:

Faster Data Transfer

Any ISDN line is at least twice faster than PSTN phone line due to the fact that the former provides two channels for transferring data. This makes transferring important information across the network faster and more reliable.

Multiple Line Functionality

With an ISDN network, each digital line is capable of transferring multiple data simultaneously. Traditional PSTN networks only allow one transfer at a time, making it inefficient for your business. An ISDN network allows your employees to take calls and transfer customer information in one line at the same time, allowing you and your employees to be more productive, reliable, and efficient with their task.

Less Data Interference

Since data is transferred through a digital line, it is affected by less to none interference. Traditional analog lines are highly susceptible to outside interference, thus affecting their efficiency. With an ISDN phone network, you get clearer voice calls and faster data transfers.

If your company is beginning to grow, switching to ISDN phone plans might be better for your business. This will not only help boosts your company’s current performance but also help it grow. With ISDN phone plans usually upgradeable, rest assured that when a time comes for another upgrade, you have room for growth.

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