Can I get a temporary inbound fax number on an iPhone?

A company I'm dealing with needs to fax me a signed authorization document, but I don't own a physical machine or a landline. I don't need a long-term commercial office plan, just a quick way to receive a few incoming pages directly on my mobile device. Are there any reliable apps that let you set up a dedicated number on short notice?

I ran into a backward situation last month where a vendor absolutely refused to email me an authorization sheet and insisted on faxing it. To find a quick workaround, I pulled up the curated platform review on https://venturebeat.com/business/5-best-iphone-fax-apps-send-documents-from-your-mobile-in-2025 and decided to download the Municorn Fax App. It lets you select your own dedicated inbound number directly within the interface, meaning the vendor could send the pages straight from their office machine, and they instantly popped up on my phone screen as a clean, downloadable PDF.