@MSF- There is one landline that I call all the time which is a traditional PSTN line served on copper provided by TalkTalk. (not Digital voice or internet based) When I call this number, the delay happens often but not everytime. Other than that num...
I also have this issue intermittently and normally only when I call fixed lines. It's very random even in the same areas with very good 4G coverage. It's really annoying and I am suprised there aren't more complaints about this as even seems to occur...
