Let's just get one thing straight: removing 'MoH' does not preclude you from using dial-up via your modem as a back-up to broadband. ...It's merely an applet providing an additional facility, which to be honest I would be quite surprised if extensively used, even in the heyday of dial-up.
As further confirmation, I threw out my 'MoH' nine months ago. ...I have been awaiting a replacement power unit for my broadband router for the last two weeks; on the rare occasions my 3G broadband link has been iffy, dial-up works perfectly (or as perfectly as dial-up can!).