You don't give obvious salesperson tells such as an exaggerated voice or an unnatural rhythm. You talk slower, deeper and fully relaxed, with a powerful expectation of completing your next step.
Control the call assumptively.
It's not so much as the words you use than how you say them that provides the impact. When you communicate powerfully it overrides people's logical perception of the words you use. It evolves the request into a command.
When you can say this congruently you impose your reality onto theirs, whoever has the most certainty will win over the person that is unsure.
Most middle aged women love a strong, sexy voice. Being told what to do turns them on.
They are probably bored shitless. Be a nice romantic young man and flirt with her for a bit. Give her some good phone, ask for her help and tell her what you want her to do.
My two favorite things to say to gatekeepers are:
'Can you put me through now, thank you.'
This turns your request into a command, thank them for it in advance, assumptive all the way.
When she asks 'Can I take a message?'
'I'd rather not. Thanks.'
Gatekeepers don't hear this shit. Most agents are puppy dogs.
Slightly confuse her as well as show you aren't afraid to ask what you want!
This makes your second question easier to answer to relieve the confusion and aswell as her slight, horny shock.
'Who would I ask to speak to?'
Write down the name, the gatekeepers name and call back tomorrow or later on in the day.