While you're sunning it up in the garden over a bank holiday weekend, be sure to collect those customer details with an answer message like this one.
 
If you don't trust me yet, take a look at some of the brands I've worked with.
 
Something that's looming on the horizon is the death of the copper network. From September 2023, nobody will be able to have a phone installed on the old system and by 2025 BT's victorian cables will be gone completely.
 
This means that everyone will be using VOIP phones, which have much clearer sound. Clear enough to hear the shoddiness of your phone messages. Get them updated with PROFESSIONAL telephone messages before the last minute rush! 
 
Actually, my delivery time for bespoke messages is less than 24 hours, so in theory you could leave it til the last minute... 
 
This is one of 4 holiday messages available in the shop. Others:
https://www.martinwhiskin.co.uk/product-page/holiday-message-1
https://www.martinwhiskin.co.uk/product-page/holiday-message-3
https://www.martinwhiskin.co.uk/product-page/holiday-message-4