Our ISDN2 and ISDN30 packages allow you to make and receive simultaneous calls over a digital line by connecting into a compatible telephone system and providing multiple lines. ISDN can be used as your principle telephony service or as a backup to VoIP.
ISDN2 connects your telephone system to provide multiple lines and is ideal for small businesses. ISDN30 has the same principles as ISDN2 but a higher capacity, allowing for 8-30 simultaneous calls at any given time - incoming and outgoing. Ideal for medium or large organisations, features include Direct Dial In and Caller Line Identification.