@KeithFrench The UPS/Backup supply would be ones supplied by TalkTalk - To allow the continued use of an emergency phone, during any power blackout - for disabled customers. I have no idea which router I would be supplied with..... Access to emergency services in a power cut Any provider of a voice communications service must make sure that customers have uninterrupted access to emergency organisations. For more detail, see General Condition A3.2(b). Ofcom has published guidance on how we expect providers to meet this requirement when there is a power cut. The guidance has four main principles, namely that providers should: take steps to communicate effectively with customers; identify customers’ needs; have a solution in place to enable access to the emergency organisations for at least one hour; and have a process to make sure customers who move to a new house or whose circumstances change in some other way, are aware of the risk and protection solution available. Providers should offer this solution free-of-charge to customers who depend on their landline to call emergency services during a power cut. More information Read our guidance on protecting access to emergency organisations when there is a power cut at the customer's premises
... View more