Monday, 9:00
- 09:00
Upload your ID and wait for a review - 09:20
Card declined: issued in the wrong country - Wed
Approved, but international calling is still off - Next month
A bill bigger than you expected
Mexico City is still waiting.
For 3CX, FreePBX, Asterisk, Yeastar and any SIP phone system
The prepaid SIP provider you can switch on tonight.
LinkedSIP is a SIP provider for people who run their own phone system. Add us as an international SIP trunk, top up from $20 in crypto, and call 200+ countries tonight. No ID, no card from the right country, and the most you can ever spend is your balance.
Where do your calls go most?
Pick a country and we will tell you what a minute costs.
- 200+countries and territories priced
- $20to start, in crypto
- $0.99a month for a local number
- $0.00the floor your balance stops at
What a SIP provider does
The line between your phone system and every phone in the world.
A SIP provider connects your phone system to the public phone network over the internet. You add it as a SIP trunk: a server address, a username and a password. From then on, every extension can call any landline or mobile, and each call is billed by the minute to the country you call.
New to trunks? Start with what a SIP trunk is: how it works, how many channels you need and how to keep it safe.
- Your phone system3CX, FreePBX, Asterisk, Yeastar, Grandstream or a SIP app on your laptop or phone.
- SIPLinkedSIPChecks your balance, holds the cost of the call, and routes it to the country you dialled.
- Any phone, 200+ countriesLandlines and mobiles. The person you call needs no app and no internet.
When your provider blocks international calls
You need to call a client in Mexico City before lunch.
Same phone system, same morning. One carrier wants paperwork. The other wants an email address.
Press to switch calling on
Monday, 9:00
- 09:00Create an account with your email
- 09:04Top up $20 in USDT
- 09:08Paste three settings into your phone system
- 09:10Mexico City picks up. Your balance is the limit.
Done before the coffee cools.
Example timeline with a USDT top-up on a fast network. Bitcoin takes longer to confirm.
$0
SIP fraud protection with a prepaid ceiling
Someone has your SIP password. It is Friday night.
Bots scan the internet for phone systems, guess a password and spend the weekend calling expensive number ranges. Telecom fraud cost an estimated $38.95 billion in 2023. On a trunk billed afterwards, the meter has no top. On LinkedSIP, the calls stop when your balance reaches zero.
Premium-rate, special and satellite ranges are blocked on every new account until you ask for them.
A trunk billed afterwards$32,400on the invoice you open on Monday
LinkedSIP with a $100 balance$100then the calls stop, 12 minutes after they began
International call rates per minute
Calls to the world, priced by the minute.
One published rate per country, with its billing increment beside it. 71% of the routes on the draft list bill per second. No monthly fee, no setup fee, no charge per channel, and unanswered calls cost nothing.
Mexico+52$0.0025per minute
Pakistan+92$0.0200per second
Nigeria+234$0.0375per second
Philippines+63$0.0225per second
India+91$0.0150per minute
United Kingdom+44$0.0175per second
United States+1$0.0163in 6-second steps
Colombia+57$0.0019per minute
How to read a rate
$0.0025 a minute, billed per second means a call of 2 minutes 10 seconds costs about half a cent. Billed per minute, the same call is rounded up to 3 minutes. The increment changes the bill as much as the rate does, so we show both.
See international call rates by country, or check a full number for its exact rate.
Draft price list for the preview: one rate per country for mobiles and landlines. Final prices are published before launch.
How to set up a SIP trunk with LinkedSIP
Four keys from sign-up to your first call.
No sales call and no onboarding queue. If you can add a trunk to your phone system, you can do this before lunch.
Which phone system do you run?
- @
Open an account
An email address you can verify. No documents, no selfie.
- $20
Top up
From $20 in USDT, USDC, Bitcoin or four more coins, held in US dollars.
- PBX
Paste three settings
Server, username and password into 3CX, FreePBX, Asterisk, Yeastar or any SIP app.
- ON
Call the world
Every call is held against your balance before it rings.
- Server
- Shown in your account
- Username
- Your SIP login
- Password
- Your SIP password
- Codec
- G.711 (PCMU, PCMA)
Pick your phone system above and we will show you where each setting goes.
Works with the phone system you already run
3CX, FreePBX, Asterisk, Yeastar and Grandstream as a SIP trunk; Yealink, Grandstream and Polycom desk phones; and SIP apps such as Zoiper, Linphone and MicroSIP on a laptop or mobile.
Each SIP login has its own limit on calls at once, so one leaked password cannot open every line.
Pay for calls with crypto
Seven coins. Dollars in your balance.
Top up from $20. You pay the network fee; we credit the full amount in US dollars once the payment confirms. Credit never expires while your account is open.
USDT
USDC
Bitcoin
Ethereum
Solana
Tron
BNB
$0.99
Virtual phone numbers in other countries
Be local in another country for $0.99 a month.
Give clients a number they can call cheaply, ring it on the phone system you already use, and pay for it from the same balance. No documents, no proof of address.
- +44 20 •••• ••••United Kingdom, London$0.99 a month
- +1 212 ••• ••••United States, New York$0.99 a month
+49 30 •••• ••••Germany, Berlin$0.99 a month
Example numbers. Availability depends on stock in each country. How virtual numbers work, and a year's bill.
Why you can trust a no-ID SIP provider
No ID to start. Rules you can read.
Plenty of crypto SIP shops sell anonymity. We sell the opposite: one brand that answers its email, public prices and a published policy, so that starting without paperwork is something you can trust.
What we publish before you sign up
- Every rate and billing increment, for every destination
- The $20 minimum top-up and the $0.99 number price
- Call limits per SIP login and blocked premium ranges
- Our acceptable use policy and payments and refunds policy
Who LinkedSIP is not for
- Anyone who needs to call emergency services: LinkedSIP cannot
- Teams that must pay by card or invoice
- Anyone after unlimited minute bundles
- Auto-dialled or robocall campaigns, and anyone who needs to stay anonymous
FAQ
SIP provider questions
The questions people ask about SIP providers, and the ones they ask us before they switch.
What is a SIP provider?
A company that connects your phone system to the public phone network over the internet. You add it to your phone system as a SIP trunk, and it carries your calls to landlines and mobiles, usually billing per minute.
Who is the best SIP provider?
The one that fits how you work. Compare the price model (per channel or per minute), the rates and billing increments for the countries you call, how you pay, how fast you can start, and what stops a hacked phone system from running up a bill. LinkedSIP fits if you want prepaid credit, crypto payments and no paperwork. It does not fit if you need emergency calling, invoices or unlimited bundles. See nine SIP trunk providers compared.
How much does a SIP trunk cost?
It depends on the model. Per-channel trunks charge a monthly fee for each call you can make at once; metered trunks bill each minute afterwards. LinkedSIP has no monthly, setup or channel fee: you pay the published rate per minute for the country you call, from prepaid credit, and numbers are $0.99 a month. Price your month on the SIP trunk pricing page.
What is the difference between SIP and a SIP trunk?
SIP is the protocol phones use to start and end calls over the internet. A SIP trunk is a connection that uses it to link your phone system to the phone network, supplied by a SIP provider.
Do I really not need ID?
No ID and no documents, for calling or for numbers. You need an email address you can verify, and you agree to our acceptable use policy.
Can a hacked phone system run up a bill?
Only up to your balance. Each call is held against your credit before it rings, there is no credit line, and premium ranges are blocked by default, so a break-in can never become a debt.
Can I use it for a call centre?
Talk to us first. Call centre campaigns and any automated dialling need our written agreement.
What happens to unused credit?
It stays in your account in US dollars and does not expire while your account is open. The refunds policy explains when unused credit can be returned.
Tonight, your phones could be ringing in 200 countries.
An email, a $20 crypto top-up and three settings. No ID, no paperwork, no bill that can surprise you.