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SIP GSM gateway software for Windows

Turn Android phones into a SIP GSM gateway

Plug your phones into a powered USB hub, run PureVoIP on a Windows PC, and terminate or originate SIP calls through your own SIM cards. No Bluetooth dongles, no static IP, no rooting.

Watch the demo Intro video See pricing
4.9 rating out of 5 stars

One-time payment · Hub, cables and license included · Free remote setup

More than 10kclients worldwide
10 to 100+channels per setup
Any SIP switchsoftswitch, PBX or trunk
5-10 daysdelivery by DHL or FedEx

How it works

Three steps, all from the software screen. No scripts or code.

Step 1

Register the software

Run PureVoIP and register it to your SIP server with a normal SIP account.

Step 2

Plug in your phones

Connect phones to the USB hub. Each one is detected in about 5 seconds and appears as a free channel.

Step 3

Route your traffic

Send calls from your SIP server to that account. PureVoIP distributes them across the connected phones.

Call flow: your SIP server connects over the internet to PureVoIP on a Windows PC, which reaches the mobile phones through the USB hub and cables, and the phones reach the GSM network

What you can do with it

The six things clients ask about first. The features page has the rest.

Termination and origination

GSM call termination, origination and DID numbers on the same setup.

WhatsApp and Telegram calls

Terminate SIP calls to WhatsApp and Telegram through the same phones.

SMS, SMPP and USSD

Send and receive SMS, terminate SMPP traffic alongside calls, check balance and recharge SIMs.

Routing and dialing plans

Route by ACD, ASR, channel load or sequence, and assign each network prefix to specific channels.

Live monitoring

Watch channel status, ASR, ACD and remaining minutes in the software or from this website.

Every VoIP codec

G.729, Opus, PCMU, PCMA and more, with transcoding between them built in.

See all features

See a test call end to end

The demo sets up two SIP accounts, registers PureVoIP, and completes a call through a connected Samsung phone. WhatsApp calls work the same way.

Demo notes and setup details

What you get, and what you need

We ship the powered USB hub and the cables, and license the software to you. You add a Windows PC, your phones and your SIM cards.

PureVoIP 20-port powered USB hub with power and USB cables

In the box

  • Powered multi-channel USB hub
  • USB cables, one per channel
  • PureVoIP software license with upgrades
  • Free SIPElectron softswitch subscription (1 to 3 months)

What you provide

  • A PC with Windows 10 64-bit (English version), Core i3, 4 GB RAM and 5 GB of free disk space
  • Phones and SIM cards
  • A SIP account on your softswitch or PBX
  • Any internet connection

Compatible with

  • Samsung Galaxy A, M and J series
  • Xiaomi Redmi 12C and classic Nokia models
  • SIPElectron, VOS3000, VoipSwitch, Asterisk, 3CX, FreePBX and others

Full compatibility list

Pricing plans

One-time payment. Hub, cables, license, remote setup and shipping are included in every package.

Starter · 10 channels

 $1,599

$160 per channel

Advanced · 20 channels

Was $3,099$2,799

$140 per channel

Pro · 30 channels Most popular

Was $4,699$3,999

$133 per channel

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Our product is trusted by thousands of clients

Join more than 10 thousand clients worldwide who trust PureVoIP.

5 stars
The device come with metal cover for heavy duty , Excellent software!!! Worked as expected
Muhammad Z.✅ Verified Buyer
5 stars
The solution is excellent , the interface is nice and easy to manage , nice to see SIPElectron there
Sung F.✅ Verified Buyer
5 stars
The technical support helped me a lot to track a problem related to my old computer for several hours , the problem was solved
Lilas C.✅ Verified Buyer
5 stars
It was an amazing experience , i built great setup with purevoip 50 channels and everything is Ok
Erick P.✅ Verified Buyer

Common questions

What does the price include?

The software license with all features and upgrades, the powered USB hub, USB cables, remote setup and shipping. You buy the phones locally.

Do I need to root the phones, give them internet, or have a static IP?

No to all three. Phones connect by USB only, and the software receives traffic through a registered SIP account.

How many channels can one PC run?

It depends on the PC. A Core i5 with 4 GB RAM runs 60-80 channels. For more, use a stronger PC or a second one.

How do I pay?

By bank transfer, Western Union or USDT. Contact us and we will send you the payment details.

All questions

Tell us how many channels you need

We reply with a quote, the payment details and a delivery date. Need something the software does not do yet? Our developers take custom work: development@pure-voip.com

Contact sales Watch the demo