> ## Documentation Index
> Fetch the complete documentation index at: https://docs.vocily.ai/llms.txt
> Use this file to discover all available pages before exploring further.
# Voice call pricing
> What a phone call costs: AI usage, the telephony charge, 30-second pulses, and transfers.
Voice calls are pay-as-you-go from your organization wallet. There is no per-call fee and
no minimum - you are charged for the call you actually made.
Every call's charge is itemised. Open **Billing → Transactions**, select a
**Voice call usage** entry, and the breakdown panel shows each component separately.
## What a call is made of
| Component | What it pays for |
| ------------- | -------------------------------------------------------- |
| **Stt** | Speech-to-text - turning what the caller said into words |
| **Llm** | The language model that decides what to say |
| **Tts** | Text-to-speech - the agent's voice |
| **Platform** | Vocily's orchestration, recording, storage, and analysis |
| **Telephony** | The phone network itself - see below |
The first four depend on the models you chose for the agent, so a call's rate changes when
you change its speech model, its language model, or its voice. The per-minute rate applied to a
call is shown on the call in [Conversations](/conversations/history).
**The Stt rate is per speech model, not per provider.** Each model in the
[Transcriber](/building-agents/transcriber) pill carries its own per-minute rate, shown beside its
name and ordered cheapest first. Switching models changes this line on every call afterwards.
**A call that failed over is billed at the model it actually ran on.** If the speech, voice, or
language model fell back to its backup mid-call, the charge follows the provider that served the
call rather than the one configured on the agent.
## The telephony charge
Telephony is the cost of the actual phone connection. **Who you get the number from decides
whether Vocily charges you for it:**
| Your number | Telephony charge from Vocily | Why |
| ----------------------------------- | ---------------------------: | ----------------------------------------------------------------------- |
| **Your own carrier account** (BYOC) | **\$0.00** | Your carrier already bills you directly. Vocily does not charge again |
| **Rented from Vocily** | **\$0.0040 / min** | Vocily pays the carrier for the number and passes the call cost through |
| **Test Number** | **\$0.0040 / min** | Same - it is a Vocily number on a Vocily carrier account |
A rented number also carries its **\$5.00 monthly rental**, which is separate from
per-minute usage and is charged whether or not you make calls. The Test Number has no
monthly charge.
### Telephony is billed in 30-second pulses
The phone network bills in fixed 30-second blocks, not per second, and Vocily bills it the
same way. Any part of a block counts as a full block:
| Call length | Blocks billed | Telephony charge |
| ------------ | ------------: | ---------------: |
| 12 seconds | 1 | \$0.0020 |
| 30 seconds | 1 | \$0.0020 |
| 31 seconds | 2 | \$0.0040 |
| 1 min 50 sec | 4 | \$0.0080 |
Only the telephony line works this way. Stt, Llm, Tts and Platform are billed for the
time actually used.
## Transfers to a human are charged twice
When your agent transfers a call to a human, the phone network is running **two calls at
the same time**:
* the **parent** call - you to the customer, still connected and still being billed
* the **child** call - you to the person you transferred to
The carrier bills both legs as separate calls. Vocily therefore charges the **telephony**
line at **2×** the call's blocks when a transfer connects.
**Only the telephony line doubles.** Stt, Llm, Tts and Platform are charged once - the AI
ran once.
**If the transfer fails** - nobody answers, the line is busy, or no one is available - the
telephony line is charged **once**, at the normal rate. No second call was ever connected,
so there is nothing extra to pass on.
### A transferred call is billed for its whole length
On a normal call you are billed for the connected conversation. On a call that transfers to
a human, you are billed for the **whole call as the phone network measured it** - from the
moment the customer answered until the moment the call finally hung up, including the time
the customer spent speaking with your colleague after the agent stepped away.
The line stays open and the carrier keeps charging for it the entire time, so the call is
priced on its full length rather than on the shorter stretch the agent was on.
### Worked example
A 2-minute-39-second call that transferred successfully, on a rented number:
| Line | Basis | Charge |
| -------------------------- | -------------------------------------- | --------------: |
| Telephony | 6 blocks × 2 (transfer connected) = 12 | \$0.0240 |
| Stt + Llm + Tts + Platform | 2 min 39 sec at the agent's rate | varies by model |
Had the transfer failed, the telephony line would have been 6 blocks - **\$0.0120**.
## Where to check what you were charged
| Where | What it shows |
| -------------------------- | ----------------------------------------------- |
| **Billing → Transactions** | Every charge, with the per-component breakdown |
| **Conversations** | Per-call duration, cost, and the rate applied |
| **Billing → Wallet** | Balance, spend by category, and workspace usage |
Amounts are displayed rounded to two decimal places. The wallet is debited at full
precision, so a long list of small calls adds up exactly rather than drifting.
Prices on this page are in **US dollars**, which is the currency of the wallet. Paying in
another currency converts at top-up, not per call, so a call costs the same regardless of
when it was made.
## What's next
* [Wallet](/account-workspace/billing-wallet) - add credits and review balance.
* [Transactions and payments](/account-workspace/billing-transactions-payments) - the ledger.
* [Rent from Vocily](/phone-numbers/rent-from-vocily) - number rental and monthly charges.
* [WhatsApp pricing](/whatsapp/pricing-charges) - messaging charges.