Which phone systems are supported?

Any SIP-compliant system, including 3CX, FreePBX, Asterisk, Issabel and VICIdial, as well as desk phones and softphones such as Zoiper or MicroSIP.

How many SIP lines can I have?

You can create several lines from the portal and request more as your team grows. Each line has its own credentials and caller ID.

How are calls billed?

Calls are billed per minute from your prepaid balance at the rate shown for the destination on your plan. The standard plan uses 60/60 billing.

Yes. Choose USDT (TRC-20) in the wallet, send the exact amount shown and the balance is added automatically once the transfer confirms. Bitcoin and Lightning are also available.

Do you offer SIP trunks for resellers?

Yes. Resellers can run separate lines per customer on one account. Contact us for volume needs or custom routing.

SIP trunking

SIP trunking you can fund with USDT or Bitcoin

Connect your PBX or dialer, create SIP lines in seconds and call the USA, Europe and Asia from a prepaid balance you top up with crypto.

Open an account See destinations

What you get with an Aerocalling SIP trunk

A SIP trunk connects your phone system to the public telephone network over the internet. With Aerocalling, each trunk is a set of SIP lines you manage yourself: create lines, rotate passwords and set caller ID from the client portal without waiting on a ticket.

Billing is prepaid and per minute. You fund the account with USDT or Bitcoin, check the live rate for each destination on your plan, and see every call with its cost in your CDR.

It works for an office PBX, a remote team on softphones, an outbound dialer or a reseller platform. The same account can run all of them, each on its own lines.

How it works
1Create your accountSign up and get your first SIP line with server, port and credentials.
2Register your systemEnter the credentials in your PBX, dialer or softphone and confirm the line shows as online.
3Top upSend USDT or Bitcoin. Your balance is credited automatically after confirmation.
4Make callsDial out at the rates shown on your plan and track every call in the portal.