Call-screening landline phone not working on Digital Voice

[organisedjim]

We have a BT 8600 cordless phone which has built-in Call Guardian / trueCall feature.  We were moved to Digital Voice and FTTP a couple of weeks ago with a new hub, and after that we noticed the call blocking isn't letting some calls through at all.

When we try calling our landline from a mobile, we get the Call Guardian message ("please say your name and press hash") but pressing hash doesn't do anything, the message just repeats.  It seems that the keypress isn't getting through to the BT 8600.  Calling from another landline works fine though.   The cordless phone is plugged directly into the green port on the hub, and I've tried changing that cable.

I've read that mobile phones send keypresses digitally rather than as audio tones, and that the EE hub is meant to convert it to tones.  If I call our landline number from my mobile and press a number key, I don't hear the tone.

I don't see any settings in the hub admin page for this - does anyone have any advice on this?

[YorkshireMidge]

@Christopher_G  Yes, they had been received, didn't appear to have been actioned, and have now been escalated. Thanks. 

As an aside, I was in contact with TrueCall support the other day on an unrelated issue and I happened to mention this bug in passing and what I had done to work around it - just in case they had been receiving similar reports from other frustrated TrueCall users.

It turns out they knew about it and were under the impression EE were working on a fix with a target of end of the year.  If that is indeed the case, then it begs the question why EE haven't been communicating that bug internally to their staff and externally to their customers via this forum.