What a difference - I regret not doing this sooner!
I went from this:
Which is nice.
As an added bonus the ISP switch required zero work on my part. Telmore canceled my previous ADSL subscription and although they did send me a nice box with a brand new ADSL modem in it, I have no use for it. The new modem is identical to the one I already have so I took my chances and just kept the old one. It worked out perfectly - some time yesterday while I was at work the IP address simply changed and that was it.
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