Replacement Guide

How to Build Your Own RingCentral

Replace RingCentral with a custom build. Business Phone System Features for Businesses of All Sizes

1-2 Weeks
112 features10 integrations1-2 weeks

Estimated Timeline

Based on 112 features at 1-2 Weeks difficulty, expect about 1-2 weeks with AI-assisted development.

1
Planning & architecture
1-2 days
2
Core features (Phase 1)
3-4 days
3
Advanced features (Phase 2)
3-4 days
4
Testing & deployment
1-2 days

Recommended Tech Stack

Next.js 14

Full-stack React framework with API routes and server components

Supabase

PostgreSQL database, auth, and real-time subscriptions

Tailwind CSS

Utility-first styling for rapid UI development

Key Features to Replicate

Top features across 8 categories. See all 112 features

Phone(27 features)

Answering rules

Route calls to your local numbers anywhere, worldwide, using robust answering rules

Automatic call recording

Enable automatic recordings for one or many users

Bridge call appearance (open beta)Premium

Delegates can call on behalf, hold, pick up within the group, share a line, and join calls

Call delegation

Assign up to 10 assistants to an executive or up to 10 executives to an assistant

Call flip

Transfer calls from one device (mobile) to another (desktop) effortlessly

+22 more in this category

Team Messaging(15 features)

Add-Ins

Bring your everyday business apps into the RingCentral app

Admin management

Add or remove users, create or manage channels on all corporate devices instantly to ensure secure access

Calendar integrations

Connect your Microsoft, Google, or device calendar to your RingCentral app to schedule, view, and join upcoming meetings right in the app

Customizable tabs

Reorder the tabs in the left navigation bar on the RingCentral app to get quick access to your favorite advanced features

Device interoperability

Compatible with iOS, Android and multi-modal devices with no special installation needed

+10 more in this category

Video(10 features)

Breakout rooms

Easily split up a larger meeting into smaller groups for effective brainstorming sessions

Browser join

Join video meetings straight from web browsers—all with the exact same look and feel

Collaborative notes

Capture notes during your video meetings, and share them in recordings or team chats

Device switch between mobile and desktop

Flip from mobile to desktop and back again with one tap, without ever leaving your meeting

Digital whiteboarding

Bring teams together for exciting collaborative sessions with a digital whiteboard that makes room for everyone's ideas

+5 more in this category

Fax(9 features)

Advanced fax spam blocking

Block numbers that start with a specific area code, start with 1-800, or are identified as spam numbers

Custom fax cover pages

Customize fax cover pages or choose from existing templates to send faxes online through the app

Email-to-fax

Send a fax directly from your email account

Fax scheduling

Choose a date and time to send out your fax

Group faxing capability

Send eFaxes to up to 50 recipients at a time or enable Fax Broadcasting in case you need to send more

+4 more in this category

SMS(9 features)

Advanced search function

Use powerful search capability to search through text trails by looking up keywords

Business SMS

Login and send SMS & MMS in seconds. Switch between desktop and cell phone anytime to pick up where you left off

Enhanced SMS deliverability

Designed to help improve deliverability, stay carrier compliant and deter some of the new fees now associated with business SMS

Group SMS/MMS

Send a text message to multiple people, either separately or as a group text

Send more than plain text

Send and receive images, audio files, videos, emojis, and other file attachments

+4 more in this category

Webinar(9 features)

Backstage prep & debrief sessions

Hosts can prepare backstage before a webinar and after a webinar is over to debrief

Branded registration pages and emails

Add company branding and colors with simple drag-and-drop functionality

Configure automated emails

Customize and send automated reminder and follow-up emails to registrants and attendees

Join from anywhere

Attendees can join from the RingCentral desktop/mobile apps, Rooms, or even from their favorite browser

Marketing integrations

Integrate and sync webinar data with your marketing automation platforms, such as Marketo

+4 more in this category

Security(7 features)

99.999% SLA uptime

RingCentral delivers less than 6 minutes of downtime every year, making good on our reliability promises and maintaining the highest uptime among industry leaders

Advanced call and fax blocking settings

Block calls and faxes with no caller ID, and allow or block numbers that start with a specific area code — plus more advanced phone service options

Emergency response locations for 911 calls

Fully compliant with RAY BAUM's Act and Kari's Law to keep your employees safe with enhanced nomadic location awareness

Mobile Application Management for BYOD

With our RingCentral for Microsoft Intune (iOS, Android) integration we make it easy for IT to monitor and enforce security policies across company-owned and bring-your-own-device (BYOD) environments

RingOut and Number Masking

Make outbound business calls using your personal number, but mask it with your RingCentral number to maintain confidentiality

+2 more in this category

Administration(6 features)

Call queues

Enables customer service through intelligent call routing to the right resources

Cloud Private Branch Exchange (PBX)

Maximize uptime, call quality, flexibility, scalability, and safeguard your data

Dial-by-name directory

Staff can be reached anywhere, on any of their devices when callers find them in your dial-by-name directory

Greetings

Users and departments can customize their extensions with their choice of music, messages, and voicemail greetings

Multi-level Interactive Voice Response (IVR) or Auto-attendant

Extend Auto-Receptionist capabilities with connections to the Dial-By-Name Directory, system extensions, voicemail, or even external business phone numbers

+1 more in this category

Cost Calculator

Pricing data not available for RingCentral. Check their website for current pricing.

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