ISDN switch off … Why is VoIP better?

ISDN switch off … Why is VoIP better?

BT have announced plans to carry out an ISDN switch off by 2020 – and phase out the PSTN (Public Switched Telephone Network) entirely by 2025.  BT Openreach provide telecom’s services to around 27 million UK homes and businesses.  Their alternative to ISDN...