Telstra's been already and the technician thinks it's the handheld phone with a misfiring battery.
Doesn't anything last these days? I've only had that since 1993 and it's had 3 batteries in it but this last one is dying much faster than the others. I haven't used the answering machine part of it since 101 messages came in which is a shame since I recorded when I had a bad cold and I sound smokey and all Nina Simone-like.
Fortunately I've kept the old phone so that's plugged in but I'm getting an extension cord. If I have to get up and down 5 times a night for calls from the Peter Sellers Memorial Call Centre, my language is going to get a bit ripe.