Two weeks ago my mother's landline started to play up. The phone would ring once and, when answered, there's a buzzing on the line. No outgoing calls can be made & callers hear the phone ringing as though there's nothing wrong with the phone. An engineer came out & said there was a loose wire & phone was fixed. Later that day the same thing happened again. Scheduled another engineer visit, 5 mins before he arrived the phone started working again. Engineer said it had resolved itself, done nothing. Since then, phone intermittently on/off - mostly off. Have scheduled another visit but not holding out much hope! A 77 year old who is in poor health needs a reliable phone line, this is getting ridiculous now.