What the end of ISDN means for your business telecoms

In 2015, BT announced its decision to switch off ISDN networks by 2025, nor will new ISDN circuits be available to purchase after 2020. This means that any organisation that uses ISDN for its voice traffic (i.e. making and receiving telephone calls) will find itself voice-less after 2025. This may sound drastic, until you consider [...]