Pick a number.
Choose your area code and pick the number you like. It comes with its own email address too: yourname@cosvoice.com.
Pick a number, save the contact, start talking. Here is what happens after that.
Choose your area code and pick the number you like. It comes with its own email address too: yourname@cosvoice.com.
Name it whatever you like. It knows your mobile number, so when you call, it knows it's you and takes instructions.
Call it. Text it. Or ask your Grok Bot to make a call for you. After each call, the written summary lands in your inbox.
Your Chief of Staff lives on your computer. CosVoice gives it a phone number of its own. Save the number as a contact, and the same assistant is now on the phone.
From the car or the school pickup line, call or text your Bot the way you'd chat with it at your desk. "Move my 3pm." "Remind me to call Mom." Same Chief of Staff, now by voice.
"Book us a table Friday at 7:30." Your Bot calls the restaurant, talks to the host, and books it under your name. It says it's your assistant, and it never gives out a card.
Give out the number, or forward the calls you miss. When the contractor calls back, your Bot asks what you would ask: the price, what's included, when they can start. You get the details, not "please call back."
After every call: a short written summary in your inbox and in your Bot's chat. Read it in ten seconds.
First the conversation, then the summary Graham reads afterward.
Lloyd called Osteria Mozza for Friday at 7:30. The host offered 7:00 or 8:15. Lloyd took 8:15, as allowed, and booked it under Graham's name. The restaurant has the line's number for callbacks.
Reserved: Osteria Mozza · Friday · 8:15pm · party of 2 · under Graham
POST https://your-agent.example/hooks/cosvoice
X-CosVoice-Event: call.completed
X-CosVoice-Signature: v1=…
{ "event": "call.completed",
"data": { "call": {
"direction": "outbound",
"outcome": "Reserved · Friday 8:15pm · party of 2",
"summary": "…", "transcript": [ … ] } } }Marco called back with the tankless water heater quote: $4,850 installed, permit and haul-away included, Navien 240, price good for 30 days. Earliest start is Monday the 21st. One decision is open: the recirculation pump, an extra $600. Lloyd told him Graham will call back by tomorrow.
Callback: (310) 555-0188
Voicemail tells you "Marco called." Your Chief of Staff tells you the price, what's included, the start date, how long the quote holds, and the one decision that's yours to make.
It answers as your assistant in a natural voice and has a real conversation. It finds out who is calling and what they need, and writes down the amounts, dates, options, and next step. People you've approved get through warmly. Strangers get a polite assistant that never shares your details.
No. It introduces itself as your assistant, and it says it's an AI whenever anyone asks. People are more helpful when they know.
It runs on Grok Voice, which talks and listens at the same time, like a person. You can interrupt it mid-sentence.
No. The line works on its own. Call it, text it, and ask it to make calls from your dashboard. If you do have a Grok Bot, or another assistant that supports MCP, connecting it lets your assistant make calls and read the summaries by itself.
Pick a number, save the contact, make the first call. About a minute.