BT has announced the decommissioning of digital exchanges and plans to migrate all of their customers onto an IP network by 2025. If you currently use an ISDN service you will be affected. Take a look at SynergyPlus’ SIP Solutions for more info on your options. This is not the only reason why businesses are flocking to SIP Trunking – the technology and business benefits are many but the high level advantages of moving to SIP are improved business continuity and disaster recovery options, cost-savings, scalability and flexibility.