Hello & Welcome to Just Answer,
I'm Greg and will do my best to assist with this issue today.
Sorry I didn't see your question earlier and to hear of any issue you are having with your phones.
If you still need help with this question:
Let me say that Vtech, like other manufacturers, does indeed make cordless phone systems that include a built-in answering system. But they also make cordless phone systems that do NOT include an answering system - used mostly by folks that use a "Voicemail system" from their phone service provider.
As an example of how to identify IF a particular system includes a built-in answering system, I have included a couple of links below (to Amazon listings) that show what these systems look like. If you look at the MAIN BASE UNIT of each system, you should notice that the system WITH the built-in answering system has MORE CONTROL BUTTONS on the MAIN BASE, while the system WITHOUT the answering system typically has only ONE button.
CS6719-2 System (WITHOUT Answering System)
CS6729-2 System (WITH Answering System)
So IF you need a system that has a built-in answering system, I would recommend returning the current CS6719 system - if you can - and look for a system that does include such a system.
On the other hand, IF you have a "voicemail feature/service" - from your service provider - I would recommend contacting your service provider for specific steps for how to set up that system and use it.
I hope this helps. Please let me know what you find or if you have any more questions about these different phone systems.
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Thanks, ***** *****