New Visual IVR Flow Builder — multi-level call trees

The complete
SIP Dialer Platform
for your call center.

Manual dialing, auto-dialer, automated IVR, live transfer, direct bridge, and phone surveys — all from any web browser. Connects to your existing Asterisk or Magnus server with zero reconfiguration.

No app required Asterisk / Magnus / FreePBX 7 calling modes
autodialer.center/dialer
Active campaigns
0
2 today
Calls / hour
0
11%
Online agents
0/ 12
Live
MD
Mode 5 · IVR + Direct Bridge
campaign_outreach_us.csv · 421 / 1,000
Running
AG
Mode 2 · Auto-Dialer Agent
leads_warm.csv · 88 / 240
Running
SV
Mode 6 · IVR Survey
survey_q2.csv · paused
Paused
Platform at a glance

One platform. Seven calling modes.

From a single manual call to a multi-level visual IVR flow — every outbound workflow your team needs, in one browser tab.

0
Calling Modes
Any+
Asterisk · Magnus · FreePBX
0
Software to Install
Users per Tenant
Calling Modes

Seven powerful modes, one platform

Every SIP user can switch between modes depending on their workflow — no extra setup required.

Mode 01

Manual Dialer

Classic browser-based SIP dialer. Type a number, hit call. Full DTMF support for IVR navigation and keyboard shortcuts for speed.

  • Dial any number from browser — no app needed
  • Physical keyboard support for fast dialing
  • DTMF tones during call — navigate IVR menus
  • Captures called party's keypresses in real time
  • Crystal clear WebRTC audio
  • Incoming calls with accept / reject
Mode 02

Auto-Dialer — Agent

Upload a CSV list and let the system dial numbers one by one automatically. When someone answers, you talk. When you hang up, the next call starts.

  • Upload CSV — one number per line
  • Auto-dials next number after each call ends
  • Configurable wait time between calls
  • Real-time progress with answered / busy stats
  • Called party DTMF keypresses shown live
  • Pause, resume, or stop at any time
Mode 03

Auto-Dialer — IVR

Fully automated. Upload your number list and an audio recording. The system calls each number server-side, plays your message, and moves on — even with your browser closed.

  • Upload MP3 or WAV recording
  • Runs entirely on the server — no browser needed
  • Works 24/7 without user interaction
  • Captures DTMF keypresses — logged per number
  • Tracks answered / busy / no-answer per number
  • Pause, resume, or stop remotely from dashboard
Mode 04

IVR + Live Transfer

Combines automation with a human touch. Plays your recorded message automatically — if the customer presses your chosen key, the call instantly transfers to your live agent.

  • Plays IVR recording automatically — server-side
  • Customer presses your chosen key (1–9) to connect
  • IVR stops instantly, call transfers to your dialer
  • Your browser dialer rings — pick up and talk
  • No interest? Call ends automatically
Mode 05

IVR + Direct Bridge

The most seamless handoff. Plays a first announcement, then when the customer presses your key, plays a second message — and bridges the live call directly to your SIP extension.

  • Two-stage audio: intro message + confirmation message
  • Customer presses a key — call stays alive throughout
  • Second announcement plays fully before agent connects
  • Live call bridged directly to your SIP extension
  • Agent hears the customer immediately — zero dead air
  • If agent is busy, call ends gracefully
Mode 06

IVR + Survey

Automated phone surveys at scale. Plays your intro recording, then prompts the customer with a follow-up message — and captures every keypress they enter as their survey response.

  • Two-stage audio: intro + survey question
  • Customer confirms interest with a trigger key (1–9)
  • Collects up to 20 DTMF digits as survey response
  • Auto-stops after 10 seconds of silence
  • All responses logged per number — downloadable
  • Runs fully server-side, no browser required
How It Works

Up and running in minutes

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

1

You provide your SIP server

Works with any Asterisk, Magnus Billing, FreePBX, or compatible PBX system. We run a one-command setup script.

2

We configure your tenant

Your company gets an isolated account. SIP users are imported automatically from your Magnus server.

3

Agents open the browser

No app, no plugin. Agents log in with their SIP credentials, choose a mode, and start calling immediately.

4

Calls bridge through Janus

Our Janus WebRTC Gateway bridges browser audio to your SIP server in real time. Your SIP infrastructure stays completely hidden.

Features

Everything your call center needs

A complete outbound calling platform 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 — just open a URL and call.

Campaign Manager

Create unlimited campaigns per user. Upload CSV lists, set your delay between calls, track progress in real time, and pause or stop at any moment.

Server-Side IVR Engine

IVR campaigns run directly on the server — no browser or agent required. Upload any MP3 or WAV file and let it run 24/7 unattended.

Manager Self-Service Portal

Each company has a manager who can add, remove, enable, or disable SIP users independently — no support ticket needed.

SIP Server Fully Hidden

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

Multi-Tenant Architecture

Every company runs in complete isolation. Separate users, SIP servers, campaigns, and manager access. Unlimited users per tenant.

Smart IVR-to-Agent Transfer

When a customer presses your chosen key, the recording stops instantly and the call transfers live to your browser dialer — no extra hardware needed.

Call Result Tracking

Every campaign number is tracked as Answered, Busy, No Answer, Transferred, or Failed. View stats live as the campaign runs.

One-Command Setup

Paste one command into your Magnus/Asterisk server — it configures everything automatically. No manual SIP configuration needed.

Remote DTMF Capture

Capture keypresses entered by the called party across all modes. IVR logs digits server-side via RFC 2833. Manual and Agent calls capture them live and display in real time.

Live Calls Monitor

Admins see every active call across all tenants in real time — SIP user, number, mode, and live duration. The dashboard updates every 10 seconds.

Call Notes

After every call, agents write a quick note and optionally schedule a callback. Notes are stored per phone number and can be reviewed anytime.

Blacklist / DNC

Build a Do-Not-Call list per tenant. Numbers on the blacklist are automatically filtered out when a campaign CSV is uploaded.

Callback Scheduler

Schedule a follow-up call for any number directly from the post-call screen. A badge on the dialer shows pending callbacks at a glance.

Work Hours & Call Limits

Set allowed calling hours and a daily call limit per tenant. Managers can set individual daily limits per SIP user. Campaign pauses automatically when a limit is reached.

Webhook Integration

Receive a POST request after every call. Payload includes number, duration, result, mode, DTMF digits, and agent note — ready for n8n, Zapier, or any CRM.

CDR Reports

Full call detail records for every level. Admins see all tenants. Managers filter by SIP user. Agents see their own calls. Filter by date range and export to CSV.

IVR Maker

Create professional IVR announcements instantly. Type your script, choose an AI voice, preview it live, and download as MP3 — without leaving the platform.

Security

Your SIP server stays invisible

Unlike traditional softphones, CellHub Dialer never exposes your SIP infrastructure to end users. Every credential, every IP, every domain stays server-side.

  • SIP server IP and domain never reach the user's browser — all traffic proxied through Janus.
  • Reduces attack surface — protects your PBX from direct internet exposure.
  • Cannot be reverse-engineered from browser dev tools or network logs.
  • TURN relay ensures WebRTC works behind strict firewalls and NAT.
  • Tenant isolation — one company cannot access another company's data.
  • Session-based auth — credentials never stored in URLs, cookies, or local storage.
What the user sees
SIP Usernameagent01
Password••••••••
SIP Server IPhidden
SIP Domainhidden
SIP Porthidden
Browser connects to
WebRTC Gatewayautodialer.center
Pricing

Simple, transparent pricing

All modes included. No hidden fees, no per-user charges. Pay per company.

SIP User Plan

Per company · Unlimited users · All 7 modes
$250/ month
✓ Billed monthly · Cancel anytime
  • Manual browser dialer — dial from any browser
  • Auto-Dialer Agent — CSV list, agent talks
  • Auto-Dialer IVR — server-side, runs 24/7
  • IVR + Live Transfer — customer presses key, agent picks up
  • IVR + Direct Bridge — live call bridged to SIP
  • IVR + Survey — collect multi-digit responses at scale
  • Custom IVR Flow — visual multi-level call tree
  • Campaign manager with real-time stats
  • Remote DTMF capture across all modes
  • Manager self-service portal
  • Compatible with Asterisk & FreePBX
  • SIP server fully hidden from users
  • TURN/STUN relay included
  • Live Calls monitor — real-time
  • Call Notes, Blacklist/DNC, Callback Scheduler
  • Webhook integration with full payload
  • CDR Reports — all levels, CSV export
  • IVR Maker — AI text-to-speech, 6 voices
Get Started via Telegram

Contact us on Telegram to set up your account. We'll have you live within 20 minutes.

White Label · Self-Hosted

Full source code. Deploy on your own server, under your own brand.
$20,000one-time
  • Complete platform source code
  • Full self-contained installation script
  • White-label ready — your brand throughout
  • Multi-tenant SaaS — sell to unlimited clients
  • Admin panel with full tenant management
  • Manager self-service portal per tenant
  • All 7 dialer modes included
  • Campaign manager, CDR, callbacks, blacklist, webhook
  • Janus WebRTC 1.2.4, coturn TURN, IVR worker
  • Magnus setup script for tenant onboarding
  • No monthly fees. Yours forever.
Contact via Telegram

Source code delivered after payment. Includes one-time setup support.

Ready to power your call center?

Contact us on Telegram — we'll configure your account and import your SIP users the same day.

Contact @Marcusvoip Install Guide Existing Customer Login