SIP trunking for companies and PBXs
A SIP trunk is your company's phone line running over the internet instead of a copper pair. It plugs into the PBX you already have, or straight into the phones, and gives you outbound calling to 233 countries billed by the second.
It connects to what you already run
The trunk speaks standard SIP: there is no box of ours to install and no brand lock-in.
- Software PBXs: Asterisk, FreePBX, 3CX, Issabel, Yeastar, Grandstream UCM
- Desk IP phones: Yealink, Fanvil, Grandstream, Snom and compatible
- Softphones on desktop and mobile: Zoiper, Bria, Linphone
- The portal's webphone, straight from the browser over WebRTC
How you set it up
The portal gives you the trunk credentials and you copy them into the PBX: host, user and password are enough. Or we authenticate you by IP address, with no password at all.
- Registration host, username and password generated by the portal
- IP authentication when the PBX has a fixed address
- G.711 (alaw/ulaw) and G.722 codecs, DTMF RFC 4733
- Simultaneous channels you decide, from one to over a hundred
What a call costs
No standing fee for the trunk: you pay for the calls you make, by the second and with no connection fee. Credit is prepaid, so there is no end-of-month surprise.
- 1/1 second billing from the first second of conversation
- No connection fee on the destinations in the price list
- The cost of each single call, itemised, in the report
Fraud protection
An exposed SIP trunk is a target: the portal gives you the tools to close the doors before you need them.
- Enable only the countries you actually call
- Daily spending cap and maximum per-minute rate for every account
- A firewall that blocks whoever tries to register with wrong credentials
Keep reading
- Services
- Rates
- Guides
- White label
- Call centres and outbound sales
- Debt collection
- E-commerce and customer service
- Professional firms
- Multiple sites and remote teams
- Virtual numbers
- FAQ
- Guide: VoIP for business
- Guide: SIP trunk on Asterisk
- Guide: SIP trunk on FreePBX
- Guide: VoIP security
- Privacy notice
- Cookie policy
Let's talk: the demo is given by a person, not a video
One of our operators walks you through the portal live and answers the questions that matter for your case. If you would rather write, we are on WhatsApp.
Signing up is free and with no commitment: we credit your account with trial credit so you can make your test calls.