[GreenKeys] O/T - 24v to 48v POTS Telco converter for added ring?

[E.]

Hey all you Telco guys - need some help!  So I’ve just bought a call blocker for my POTS.  Normally at my deck, I have an Automatic Electric model 80 (rotary) here and it has always worked great on my phone line.  Hooked it up today to the phone blocker and welp, the bell won’t ring and it won’t really dial out.  Measured voltage on the phone side of the call blocker and it measures 24v, unlike the 48v going in :/ .  Question… would the unit in the link below be the cure-all to this low voltage blues?:

https://vikingelectronics.com/wp-content/uploads/documents/product_manual/TBB-1B.pdf

Really want to run the phone through the call blocker as opposed to going around it, since there’s added benefits(tm).

Thanks to anyone who might know and be able to help out on this :) .