Free Inter-Branch Calling
Connect offices, remote staff, and departments with 0 carrier costs. Extension to extension stays on OmniPBX — add a DID only when you need outside lines.
Ext ↔ Ext freeAny industryTwilio / Telnyx
OmniPBX
Zero internal call costs and automated call routing built for growing businesses, multi-office teams, and remote workforces across any industry.
Connect Twilio or Telnyx, put softphones on your team, and keep Ext↔Ext free. Outside calls use your numbers — if nobody answers, callers get a callback or voicemail.
4.9/5 Rating from 20+ Active Multi-Branch Offices & Teams
100% Uptime Guaranteed · 14-Day Free Setup
Clear answers
Your problem
High monthly bills per seat
OmniPBX answer
Internal team calling is free. You pay carriers only for outside lines.
Your problem
Business phone systems take weeks to install
OmniPBX answer
Sign up online, get approved, connect Twilio or Telnyx in the dashboard.
Your problem
Softphones and numbers feel messy
OmniPBX answer
One Softphone Setup screen: copy credentials, register, go Online.
Your problem
App or desk phone?
OmniPBX answer
Pick a softphone (MicroSIP, Zoiper, Linphone) or a Yealink desk phone. Same extension either way.
How you go live
If you can sign up and paste login details into a phone app, you can run OmniPBX.
Create your company workspace. No installer visit required.
SuperAdmin activates your account. Then SIP details unlock safely.
Add Twilio or Telnyx if you need outside numbers. Softphones go Online from Softphone Setup.
Product
IT firms, retail, logistics, call centers, enterprise offices, clinics — same phone system. Free internal calling, smart routing, live ops, and cloud recordings in one dashboard.
Connect offices, remote staff, and departments with 0 carrier costs. Extension to extension stays on OmniPBX — add a DID only when you need outside lines.
Route calls to sales, support, or specific teams automatically — menus, ring groups, and nobody-answers failover included.
Monitor team call volume, active extensions, and performance from one live board your ops team already understands.
Securely store recordings for compliance, quality assurance, and training — play them anytime from Call Logs.
QR provisioning for Zoiper / Linphone / MicroSIP, plus Yealink desk phones — same guide for every industry.
After you sign up
Approval, carrier, extensions, softphone. No week-long OmniPBX install project.
Step 01
Create your workspace
Hit Get 14-Day Free Setup, enter company details, and wait for SuperAdmin approval.
Savings
Slide seats. See typical SaaS vs OmniPBX each month.
Team seats
25
Typical SaaS
$625/mo
OmniPBX
$114/mo
You save
$511/mo
Pricing
Get a 14-day free setup on the website. Internal team calling stays free; add phone numbers when you need the public network.
Ext ↔ Ext free · vs typical VoIP SaaS
| Feature | Typical SaaS | OmniPBX |
|---|---|---|
| Ext ↔ Ext (internal) calling | Billed per seat / minute | Always free |
| Website self-serve signup | Sales-led / quote | Included |
| Softphone & desk phone setup | Add-on or IT project | QR + guide included |
| PSTN / DID minutes | Bundled or per-minute | Your Twilio / Telnyx rates |
Website signup · free Ext↔Ext · first DIDs
Includes up to 5 Extension Seats
Growing teams · IVR · carriers
Includes up to 20 Extension Seats
Multi-brand · dedicated onboarding
Custom seat limits for multi-branch orgs
Flexible BYO-Trunking (Bring Your Own Twilio/Telnyx) or Fully Managed Cloud Telephony for teams of any size. Carrier minutes and DIDs bill on your own account — OmniPBX is the phone system layer.
Create your workspace, get approved, connect a carrier when you need outside numbers, and keep team-to-team calling free.