I have an (old) Speed Touch ADSL filter.
I have just bought and installed a new BT8600 cordless phone.
I am having a problem on some calls - the person at the other end either cannot hear me (and just shouts -'I cannot hear you' ) or tells me that my voice keeps cutting out. On other calls there is no problem. And I can hear them on all calls.
When I phoned BT Help they said that this phone, being new, might not be compatible with my existing filter.
Is this so? If it is, what filter should I buy?