Browser-Based • No App Required • Works Everywhere

Make SIP Calls
From Any Web Browser

CellHub Dialer connects your team to your existing SIP/PBX infrastructure via WebRTC — no downloads, no plugins. Your SIP server stays invisible and fully protected.

📞 Launch Dialer Contact on Telegram
WebRTC
Based Technology
Any PBX
Asterisk / Magnus / FreePBX
Zero
Software to Install
Multi
Tenant Architecture

Up and running in minutes

Connect your existing SIP server — no reconfiguration needed on your users' end.

01

You provide your SIP server

Works with any Asterisk, Magnus Billing, FreePBX, or compatible PBX system.

02

We set up your account

Your company gets an isolated tenant. You manage your SIP users from the Manager Panel.

03

Users open the browser

No app, no plugin. Agents just open a URL, log in with their SIP credentials, and start calling.

04

Calls flow through Janus

Our Janus WebRTC Gateway bridges browser audio to your SIP server in real time.

Everything your call center needs

A complete browser dialer with enterprise-grade features, ready out of the box.

🌐

Works in Any Browser

Fully compatible with Chrome, Firefox, Edge, and Safari. No extensions or plugins needed.

🔔

Crystal Clear Audio

Supports G.722 wideband, uLaw, and aLaw codecs for high-quality voice calls over WebRTC.

🛡

SIP Server Hidden

Users never see your SIP domain or server IP. All traffic is proxied through our WebRTC gateway — your infrastructure stays private.

Manager Self-Service

Your team manager can add, remove, enable or disable SIP users independently — no need to contact support.

📷

DTMF Tones

Full in-call DTMF support for IVR navigation. Also supports physical keyboard input for fast dialing.

🏢

Multi-Tenant

Each company has a fully isolated account with its own users, SIP server config, and manager access.

Your SIP server stays invisible

Unlike traditional softphones, CellHub Dialer never exposes your SIP server address to end users.

WHAT THE USER SEES
SIP Username agent01
Password ••••••••
SIP Server IP hidden
SIP Domain hidden
SIP Port hidden
WHAT THE BROWSER CONNECTS TO
WebRTC Gateway autodialer.center
  • SIP server IP and domain never reach the user's browser — all traffic is proxied through our Janus gateway.
  • Protects your PBX from direct exposure to the internet, reducing the attack surface significantly.
  • Users cannot reverse-engineer your SIP infrastructure from browser dev tools or network logs.
  • TURN relay ensures WebRTC media works even behind strict corporate firewalls and NAT.
  • Each tenant is isolated — users from one company cannot interact with another company's SIP accounts.
  • Session-based authentication: credentials are never stored in URLs or local storage.

Simple, transparent pricing

One plan. Everything included. No hidden fees.

Business Plan
$200/mo

Per company • Unlimited users • Monthly billing

Unlimited SIP users per account
Manager self-service portal
WebRTC browser dialer (Chrome, Firefox, Edge)
Compatible with any Asterisk / Magnus / FreePBX
DTMF tones & keyboard dialing
SIP server hidden from end users
TURN/STUN relay included
Dedicated tenant isolation
Get Started via Telegram

Contact us on Telegram to set up your account. Payment handled via agreement.

Ready to get started?

Reach out on Telegram and we'll have your account live within 24 hours.