Everything OsmO Does

Custom Voice — the AI answers in your own voice

Most call screeners answer in a generic synthesized voice, which tells every caller immediately that they've reached a robot. OsmO's Custom Voice feature lets you record a short sample of your own speech and clone it, so your AI assistant picks up in a voice that sounds like you.

You record directly in the app, the clone is generated in the background, and you can preview it before you switch. One voice per account, and you can re-record any time you want a better take. If you'd rather not use your own voice, OsmO also ships a set of preset voices you can pick from instead.

Custom Voice gives OsmO a more personal feel than the fixed system voices people usually hear in caller-ID apps and built-in screening tools.

Read the full Custom Voice guide →

AI call screening

When an unknown number calls and you don't pick up, OsmO answers instead of sending it to voicemail. The AI has a real back-and-forth with the caller — asking who they are, what they need, and whether it's urgent — then texts you a summary and a transcript so you can decide what to do.

This is a different mechanism from a blocklist. A blocklist works best when a number has already been reported as spam, which is why brand-new and spoofed numbers can still ring through. Screening judges the caller's intent in the moment, so a spammer using a fresh number can still be screened, and a real caller from an unknown number can still explain why they called.

How AI call screening works →

Outbound calls

OsmO also places calls on your behalf. Tell it what you need — book a table, make a salon or clinic appointment, chase a delivery, ask a shop whether something's in stock — and it phones the business, has the conversation, and reports back in plain text.

This is the half of the product people underestimate. Caller-ID apps and built-in screening tools focus on defending your phone from incoming calls; OsmO also uses AI to place calls for you.

Read the full Outbound Calls guide →

Three things make the outbound side more than a novelty:

• It calls several places at once. "Call five caterers and ask who can do Saturday" is a single request, not five separate errands. You get the answers back together.
• It gets through phone menus. The assistant navigates IVR trees — the "press 2 for billing" mazes — instead of giving up at the first menu. If a call genuinely needs you, it transfers it back.
• It doesn't give up after one try. If the line's busy or the answer is "call back later," OsmO keeps going and retries until the goal is actually met, then tells you it's done.

An AI that makes calls for you →

Recurring calls

Some calls aren't one-offs. OsmO can put an outbound call on a repeating schedule — weekly or monthly — so it happens without you remembering it. A standing Monday-morning check-in, a monthly appointment booking, a regular follow-up on something that keeps slipping.

Each series shows you when it next runs, and you can pause, resume, or cancel it whenever you want.

Transcripts and summaries

Every call OsmO handles is transcribed and summarized. Instead of a 90-second voicemail you have to listen to, you get a few lines of text you can read in three seconds — who called, what they wanted, and what they said they'd do next.

The full transcript and recording are kept in the app, so if the summary isn't enough you can read or listen to the whole thing. This matters most for the calls where the exact wording counts: a quote from a contractor, a delivery window, a callback number said too fast to catch.

Custom instructions

You can tell OsmO how to behave. Instructions are rules you write in plain language — how to greet callers, what to say about your availability, which topics to push back on, and how to handle situations you know come up.

Rules can apply to everyone, or to one specific person. That's the part people find most useful: your assistant can greet your regulars by name, brush off a particular pushy salesperson, and treat one caller's questions completely differently from everyone else's.

This is what makes the assistant sound like it belongs to you rather than to a generic script. A freelancer's instructions look nothing like a parent's.

Knowledge base

Separately from instructions, you can teach OsmO facts about you or your business, so the assistant can actually answer a caller's questions instead of only taking a message.

There are three ways to load it in: point it at your website, upload a document or image, or just type the details yourself. If you use a website, it's re-checked weekly, so when your hours or prices change on your own site the assistant doesn't keep quoting last month's.

The practical difference: someone calls asking whether you're open Sunday, or whether you cover their part of town, or what a particular service costs. Instead of "I'll take a message and they'll call you back," they get an answer — and you never see the call at all. That's a question you'd otherwise have answered yourself for the fifth time this week.

VIP list

Some people should never be screened. The VIP list is where you put them — your partner, your kid's school, your doctor. Their calls skip the assistant entirely and ring straight through to you, exactly as they would if OsmO weren't installed.

This is the feature that makes screening safe to actually leave on. The fear with any call screener is missing something that mattered; the VIP list removes that category of call from the system altogether.

Your assistant line

Alongside screening your own number, OsmO gives you a separate assistant line you can hand out — on a listing, a form, a business card, anywhere you'd rather not publish your personal number.

Calls to it go straight to your assistant, which screens them and passes on what matters. Your real number stays private.

Waiting on hold

OsmO can sit in a phone queue for you and let you know when a human finally picks up. Airlines, insurers, utilities, and banks are the usual suspects — the calls where the conversation is two minutes and the hold is forty.

An AI that waits on hold for you →

Works on your existing number

OsmO does not give you a second phone number and does not require a SIM swap. It sits on top of the number you already have, using conditional call forwarding — the standard carrier feature that redirects calls you don't answer.

Setup takes about a minute and works with AT&T, Verizon, T-Mobile, Rogers, Bell, Telus and most other US and Canadian carriers. Your phone still rings normally; OsmO only picks up the calls you don't.

How to set up call forwarding →

Platforms, languages, and pricing

OsmO runs on iPhone (iOS 15.1 and newer) and Android, and is free to download on both. An optional OsmO Pro subscription is US$4.99 per month and includes a 7-day free trial. The assistant speaks English and Spanish today, with French and German planned. OsmO is available in the United States and Canada.