To use voice calling over broadband, you'll need to use the latest Vodafone modem we've sent you, as voice calling over broadband won't work with other modems.
If you plug your phone into the usual socket and you don’t get a dial tone, you’ll need to plug it directly into the modem instead. Or, if you want to use your old phone socket and have fibre or UltraFast HFC, let us know and we’ll get a technician to make that happen.
Voice calling over broadband works with mains power and an active broadband service. If electricity is not available, e.g. during a power outage, broadband doesn’t work, so your landline phone won’t either. You can still use your mobile phone, however.
Most systems such as monitored medical, security or other alarms should work with voice calling over broadband, but some don’t. So, it's important that you call the company that monitors your alarm to ask if their service will work with voice calling over broadband. If not, they may be able to find an alternative for you before you switch to voice calling over broadband.
A few other services may not work with voice calling over broadband, e.g. some fax machines, some EFTPOS machines and using your Sky remote to buy Sky Pay Per View events and Sky On Demand movies.