Outbound calling that runs itself.

Yes, within the rules. In the US the TCPA applies, and in February 2024 the FCC ruled that AI-generated voices count as artificial voices under it (FCC 24-17). Sales and marketing calls to mobile numbers need prior express written consent, lists must be scrubbed against the National Do Not Call Registry, and calls stay between 8am and 9pm in the recipient's local time. Harmony.ai enforces consent checks, DNC scrubbing and calling windows on every dial; your counsel sets the policy.

It depends on your volume and on whether you want a platform to build on or a managed solution. Developer platforms such as Retell and Vapi give you the parts and leave scripts, telephony, compliance and tuning to your team. Harmony.ai is the managed option: we build and run the agent with you, built for teams handling 500+ calls a month. See how Harmony.ai compares with Retell.

Platforms bill per minute: Retell lists $0.07 to $0.31 per minute (published), Vapi a $0.05 per minute platform fee plus model and telephony costs (published), and Bland $0.11 to $0.14 per minute (published). At 10,000 minutes a month that is $500 to $3,100 before setup and the people who maintain it. Harmony.ai sells plans from $3K/month that include building and running the agent, so you pay for a working campaign rather than for minutes.

The usual signs are a delay before each reply, flat delivery and an agent that cannot leave its script. Harmony.ai responds in under 200ms and runs on our own models, built for the phone, so the conversation keeps its rhythm. By default the agent tells callers it is an AI. You can change that disclosure to fit your business and the rules in your country. Some US states have AI disclosure laws and the EU AI Act has transparency rules, so set it with your counsel.

Under 200ms, so the reply lands where a person would start talking. That matters more on outbound than inbound: a prospect who did not expect the call hangs up on the first awkward pause. The same speed works the other way, and a new inbound lead gets its call back within seconds, which is the whole point of speed-to-lead.

Yes. When a prospect qualifies, the agent hot-transfers the live call to a rep with a short context brief: who they are, what they said and why they qualify, so the rep does not start over. Transfers follow round-robin or time-zone rules, and if nobody is free the agent books a slot on the calendar instead. Everything else, including recordings and transcripts, writes back to your CRM.