Martin <not-for-mail@example.com> wrote:

> I'm hoping to use my vintage type 314 phone to dial out through a VOIP
> adaptor, but this requires DTMF tones. Can anyone recommend a device
> that will convert pulse dial to DTMF?

For anyone interested... The Online-Shop section of
http://www.telefonmanufaktur.de/
has an item:
IWV / MFV Konverter
Artikel-Nr.: 120080
39,00 EUR

The version shown on the website has German connectors, but if you email
them, they will send you a version with UK connectors for 42 Euro.

Thanks to everyone for their earlier suggestions.

- Martin.