Manual phone with Advanced Nuisance call blocking

[BobE1]

We're thinking of buying one of the new Nuisance Blocking phones (probably a triple handset).  We have always kept an old 'manual' phone which does not rely on mains electricity, thinking that this is useful in a powercut/emergency.  Will that upset the 100% nuisance blocking system on our new phones if we go ahead?

[Keith_Beddoe · Accepted solution]

@BobE1 

If a wired phone is plugged in as well, you are likely to hear a short ring on it, before the call blocking phone takes the call. It should not affect the call blocking.

The BT4600 is very popular.

[BobE1]

That's very helpful Keith, many thanks.