LetterAgent
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Usually yes. A quick call tells the recipient to expect your fax, confirms the number still reaches a fax machine rather than a voice line or voicemail, and keeps your pages from sitting on a shared output tray where anyone walking by can read them. The privacy angle is the serious one: a fax sent to the wrong number is a well-known cause of healthcare privacy breaches.
Unlike email, a fax has no recall button. Once the pages print at the other end, they are in someone else's hands, and you may never know it happened: the machine reports a successful transmission because, from its point of view, the call completed.
In healthcare this is genuinely serious. A misdirected fax carrying patient information can become a reportable privacy breach under US health privacy law, and under Canadian provincial health privacy rules the same way. Hospitals and clinics run fax verification procedures, read-back of numbers, cover sheets with confidentiality notices, for exactly this reason. If you fax medical, legal, or financial documents, the call-before-you-fax habit is not politeness: it is risk control.
| Situation | Call first? | Why |
|---|---|---|
| Sensitive documents to a new recipient | Yes, always | Confirms the number and puts someone on standby |
| Routine pages to a known dedicated line | Optional | You have sent there before without trouble |
| After-hours fax to an office machine | Call the next morning | Confirms the pages arrived and were collected |
| Any healthcare or legal document | Yes | Misdelivery carries real consequences |
And if you want to skip the hardware side of faxing entirely, LetterAgent sends outbound faxes through your AI assistant: you describe the fax and the destination, approve the exact quoted total, and pay once through Stripe. It covers US and Canadian fax numbers and is currently in testing, so confirm status before anything time-critical, and note there is no inbound fax service.
If you are calling ahead anyway, the cover sheet is the written half of the same courtesy. A good one has five things: who the fax is to, who it is from, the date, the page count including the cover sheet itself, and a line telling the recipient what to do if it arrived at the wrong place.
The page count is the part people skip and then regret. When the recipient gets four pages but the cover says five, they know immediately to ask for a resend instead of acting on an incomplete document. The misdelivery line, something like "if you received this in error, please call us and destroy the pages," is standard practice in healthcare and legal offices, and it costs you one sentence.
Keep the cover sheet to one page and put the confidentiality notice on it, not buried on page six. Anyone handling the fax sees the warning before the content, which is the entire point.
Ready to fax it? Fax with LetterAgent: describe it to your AI assistant, approve the exact quoted price, and it is sent.
LetterAgent is a working name. Prices include print, postage, and our service fee. US prices in USD, Canadian prices in CAD (Canadian prices exclude applicable sales tax, added at checkout). Currently in private testing.
Need help? Ask your assistant: it can check a job's status any time. If it ever can't handle something: hello@getletteragent.com