Some interesting converstations about dialers: Here is the link.  Hi Jon It is legal to contact customers and leave a messaging on there voicemail with an autodialer. Theirs nothing wrong with contacting your customer and leaving a voicemail and leaving a message with an autodialer is technically no deferent. The trouble starts when you call people with an autodialer and try to sell something with a pre recorded message. You will also find a problem with the fact that diallers are specifically designed not to connect to voicemails, so if you have purchased a cost effective dialling solution (no names) you could be looking at a none starter. I know that the Avaya PDS has been deployed in this fashion before for a well known finance organisation. Regards Jason Hi Jon, Did you get my email reply, BTW? I'd like to talk to you about silent calls.... With regards to your question. This is another reference to Article 19 of the PECR: 19. - (1) A person shall neither transmit, nor instigate the transmission of, communications comprising recorded matter for direct marketing purposes by means of an automated calling system except in the circumstances referred to in paragraph (2). (2) Those circumstances are where the called line is that of a subscriber who has previously notified the caller that for the time being he consents to such communications being sent by, or at the instigation of, the caller on that line. The query is: Is it a "Direct Marketing" call. I'd say not if you're calling them back. End.....