One of the most challenging aspects of writing for speech is optimising text to be read aloud and recorded. On paper, long, complex sentences are easily accommodated. When read out aloud, the same sentences can sound awkward and confusing.
Your phone system can be a powerful marketing tool for your business, and that includes your voicemail greeting. If you want to utilize this opportunity to throw in a quick humblebrag and keep callers informed of your awards and accolades, there are a few best practices, you should follow. First, keep the self-promotion brief and appropriately placed within your voicemail message. Don’t promote yourself and your products/services in the same greeting, and finally, only include current achievements in your business voicemail greeting.

9.) Bienvenido/a a John Doe. Lo sentimos, en estos momentos no hay nadie en nuestras oficinas. Por favor, déjenos un mensaje con su nombre y número de teléfono tras escuchar la señal. Le devolveremos la llamada tan pronto como sea posible.
You know that your callers are making inferences about your business and brand. If you want your voicemail recording to leave a positive impression, smile when you record it! Research shows that smiling affects how we speak, and listeners are not only able to identify that people are smiling, but also what the intent is of the smile based on voice intonation alone.