Tuvoz vs Meta Muse's built-in calling

Meta Muse is testing its own feature for calling US businesses, but as of Oct 8, 2026 it’s in limited testing, and Meta has said it will roll it out “when it’s ready and with the proper disclosures.” Tuvoz works inside Muse today as a custom service you set up in chat, and the same account works in Claude Code, Codex and claude.ai.

This page compares what’s public about Muse’s calling with what Tuvoz does. Muse’s feature is changing quickly, so each claim links to its source.

What’s known about Muse’s own calling

• Muse launched on Sep 8, 2026 in the US, on iOS, Android and the web, with a no-cost tier and paid plans reported at $20 and $100 a month (Wikipedia, Fox News).
• Calls go to US businesses. Reuters describes a Muse user telling the agent “to dial phone numbers for US businesses” to book haircuts, check stock or get quotes (Reuters via KSL). An early tester reported Muse refusing personal numbers (RuntimeWire).
• Access is limited. Fox News reported on Oct 3 that the feature is in “limited testing rather than being broadly available.”
• Some test calls were placed by people. Reuters reported on Sep 22 that Meta tested a “human concierge” in which contractors handled some calls placed through Muse. A Meta vice president called starting that test without proper disclosures “a miss” and said Meta had rolled it back. A spokesperson said Meta “will only roll it out when it’s ready and with the proper disclosures.”
• Not public yet: what Muse’s calls say when they open, whether they ask before recording, what calling will cost, and whether Muse asks you mid-call.

Using Tuvoz inside Muse

Muse can add a custom service from an OpenAPI document and store its key in Muse’s Secure Credentials Store, outside the chat (Parallel’s guide). Paste Set up Tuvoz: https://tuvoz.io/agents into Muse and it creates the Tuvoz service, shows you a sign-in link and a number to pick, and saves the key. Full steps are in how to enable Meta Muse to make phone calls.

At a glance

	Muse built-in calling	Tuvoz in Muse
Availability	Limited testing	Anyone who signs up (US)
Setup	None, if you have access	One paste, a sign-in link, and a number match
Who it calls	US businesses	US listed businesses, your own phone, and people you confirm agreed to AI calls
How calls open	Not published	“Hi! I’m Jane Doe’s AI assistant, calling through Tuvoz about a dinner reservation.” Then it asks before recording
Mid-call questions	Not published	Asks Muse; if Muse doesn’t answer in time, calls your phone
Price	Not announced	$0.12 a minute, billed per second, with a 30-second minimum per answered call leg, including calls to your own phone
Works outside Muse	No	Claude Code, Codex, claude.ai, OpenClaw

Where Muse’s built-in calling is better

• No extra account. It’s part of Muse, with no second sign-in, key or bill.
• Meta’s reach. Meta says it’s “working with merchants” on the feature; a built-in feature can use what Meta knows about businesses.
• Nothing to watch. With Tuvoz, Muse keeps checking the call for questions in short requests of 15 seconds or less. A built-in feature can handle that inside Meta’s own systems.

Where Tuvoz is different

• You can read the rules. Tuvoz’s opener and consent lines are published and fixed in code, and the voice bridge is open source.
• A fallback to you. If Muse can’t answer a question during the call, Tuvoz phones you, asks, and passes your answer back.
• One account across agents. The same Tuvoz account and call history work from Claude Code at your desk and Muse on your phone.

Where Tuvoz is weaker

• It’s a separate account with its own sign-in and billing. Tuvoz gives you 15 free minutes to start. Free plan includes training on your calls.
• Setup takes a few minutes in chat, and Meta doesn’t review custom services.
• Because Muse polls Tuvoz in short requests, answers to mid-call questions can take a few seconds longer than in Claude Code.

Which should you pick?

If you have Muse’s calling and it does what you need, use it: it’s built in.

If you don’t have access, want to know exactly what the person you’re calling hears, or want the same phone line in Claude Code, Codex or claude.ai, set up Tuvoz.

See also: Tuvoz vs Google’s “Ask for Me” and which AI agent is best for phone calls.