ISDN lines have been the staple of business telephony since many years, ISDN gives your business crystal clear call quality for up to 8 phone lines. This type of line is suitable for smaller businesses and offices. ISDN is high-performance voice and data services.
For the activation of the ISDN service, lump sum is required both for guarantee of the equipment usage and as a prepayment, until the full amount is repaid in accordance with the fixed service charge for each of the following services. Once the one-off cost has been fully paid, the monthly fixed charge will begin as defined by each of the following services.