Multi-line calling
Manage multiple business numbers from one app. Choose which line you call from and keep conversations organized by business, brand, or department.
Fissible Phone · Early access
A Premium Business Phone App for iPhone
Fissible Phone gives small businesses multi-line calling, caller screening, voicemail intelligence, and the foundation for AI receptionist workflows — without the PBX complexity.
- Keep business calls separate from your personal number
- Manage multiple business lines from one iPhone app
- Screen unknown callers before they interrupt your day
- Review voicemail with transcription and structured summaries
- Built for bilingual businesses — English now, Spanish caller prompts planned
Built by Fissible. Powered by Twilio infrastructure. Designed for iPhone-first business communication.
Business phone tools shouldn’t feel like telecom homework
Most small business phone setups force you into one of two bad options: forward everything to your personal cell, or stitch together phone numbers, SIP trunks, forwarding rules, softphones, and dashboards.
That works until it doesn’t. You miss calls. Spam gets through. Voicemail is hard to review. Business and personal blur together. And when you grow from one person to a small team, the whole setup becomes fragile.
- Personal and business calls get mixed together
- Unknown callers interrupt focused work
- Voicemail is slow to review
- Multi-line setups are awkward
- Existing Twilio workflows require too much setup
- Traditional PBX systems feel heavy for small teams
Fissible Phone is being built to make the business phone experience feel native, organized, and professional on iPhone.
A business phone layer built around the iPhone
Fissible Phone turns your business number into a dedicated iOS calling experience — the control of a real phone system without making owners into telecom admins.
Caller screening
Unknown callers shouldn’t get instant access to your attention. Fissible Phone is designed around screening, context, and smarter call handling.
Voicemail that’s easier to review
Review voicemail with transcription, caller details, and structured analysis, so you can decide what needs action without listening end to end.
Built for multi-business use
Operate more than one business or brand from the same device while keeping calls and lines cleanly separated.
Built for bilingual businesses
English today, with Spanish (US) caller prompts planned — designed for owners and teams whose customers speak both.
iPhone-first experience
Designed around iOS calling patterns — not a desktop PBX interface squeezed onto a phone.
Designed for the real call flow
From unknown caller to follow-up, Fissible Phone is built around the full lifecycle of a business call.
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1
A caller reaches your business line
Calls come into your dedicated business number, separate from your personal phone identity.
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2
Screening gives you context
Unknown callers can be screened before they reach you directly, helping reduce spam, scams, and low-value interruptions.
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3
You answer, decline, or route
Take the call in the app, send it to voicemail, or let the system handle the next step based on your setup.
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4
Voicemail becomes actionable
Missed calls and voicemail can be reviewed later with transcription and analysis, helping you prioritize urgent calls.
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5
Follow-up stays connected to the business
Call back from the right business line instead of exposing your personal number.
Caller screening is not an add-on. It’s the point.
Small businesses are constant targets for spam, robocalls, fake leads, vendor noise, and outright scams. A business phone system should protect your attention, not just ring louder.
Fissible Phone is built with scam and spam screening at the center — better context before you answer, and better records when you don’t.
- Screen unknown callers before they reach you directly
- Separate real customers from noise
- Reduce interruptions from spam and scam calls
- Preserve professional call handling even when you are busy
- Build a history of calls, voicemail, and caller context
Voicemail you can actually use
Traditional voicemail is a backlog. Fissible Phone is designed to make voicemail easier to triage.
Instead of only a recording, voicemail can include transcription, caller details, urgency indicators, and structured notes — so you can decide what deserves a callback, what can wait, and what to ignore.
- Voicemail inbox built for business follow-up
- Transcription for faster review
- Caller and company extraction where available
- Urgency and intent indicators
- Block or add callers from voicemail context
One app for multiple lines, brands, or businesses
Many owners don’t operate in a single neat box — a main line, a second brand, a side operation, or separate numbers for different teams. Fissible Phone is being built for that reality, so calls stay organized instead of collapsing into one generic log.
- Owner with separate business and personal numbers
- Consultant managing multiple brands
- Small business with sales and support lines
- Founder testing a new business line before hiring
- Owners or small teams managing separate business lines
- Multi-brand operator keeping lines distinct
Coming next: AI receptionist for small business
Planned · paid subscriptionFissible Phone is being built as the foundation for an AI receptionist subscription: helping small businesses answer more calls, screen unknown callers, capture details, summarize conversations, and route calls without a full-time front desk.
- Answer and screen calls when you are unavailable
- Ask callers for name, company, and reason for calling
- Answer callers in English or Spanish (US)
- Summarize call intent and detect urgency
- Route callers based on business rules
- Capture callback details and reduce low-value interruptions
Twilio power without PBX complexity
Twilio is powerful infrastructure, but turning a Twilio number into a polished iPhone business phone usually means configuring credentials, softphones, forwarding rules, Studio flows, SIP trunks, or custom code. Fissible Phone turns that infrastructure into an iPhone-first business phone experience. Early access connects to your own Twilio account; guided setup and managed onboarding are planned, so owners don’t have to become telecom admins.
- Built on proven communications infrastructure
- Designed for iPhone users, not telecom admins
- Avoids fragile DIY softphone setups
- Gives small businesses a more polished call workflow
- A path from simple line to receptionist automation
Fissible Phone uses Twilio-powered communication infrastructure. It is not affiliated with, sponsored by, or endorsed by Twilio.
Setup docs for early access
Until the in-app provisioning wizard ships, the setup guide is the onboarding product. It walks through the Twilio account, business number, Functions service, TwiML App, app connection, Doctor checks, and first test calls.
Not just another softphone
| Typical softphone | Fissible Phone |
|---|---|
| Connects to a number | Organizes calling around lines, contacts, voicemail, and screening |
| Requires telecom setup | Built to reduce setup complexity (managed setup planned) |
| Treats every call the same | Focuses on caller context and screening |
| Generic call history | Business-focused recents, contacts, and voicemail |
| Usually one account, one line | Built toward multi-line and multi-business workflows |
| Mostly reactive | A foundation for AI receptionist automation |
Built for owner-led businesses and small teams
Fissible Phone is for businesses too serious for a personal cell number, but not ready for a heavyweight enterprise phone system.
Local service businesses
Consultants
Agencies
Real estate
Solo founders
Small teams
Multi-brand operators
Twilio-backed numbers
Frequently asked questions
Is Fissible Phone available now?
Fissible Phone is currently in development. Early testing is underway, and the product is being prepared for broader availability.
Is this a replacement for my personal phone number?
No. Fissible Phone keeps your business number separate from your personal number while letting you manage business calls from your iPhone.
Does it support multiple business lines?
Yes — multi-line and multi-business workflows are central to the product direction.
Does it work with Twilio?
Yes. Fissible Phone is built around Twilio-backed calling infrastructure. Early access connects to your own Twilio account; guided setup and managed onboarding are planned, so you won’t have to assemble a softphone stack yourself.
Is Fissible Phone affiliated with Twilio?
No. Fissible Phone is built by Fissible and is not affiliated with, sponsored by, or endorsed by Twilio.
Is it available in Spanish?
English is supported today. Spanish (US) caller prompts are planned as a near-term priority for bilingual businesses.
Will it support SMS?
SMS support is planned. The initial focus is business calling, caller screening, voicemail, and call workflow quality.
What is the AI receptionist?
The planned AI receptionist is a future paid subscription feature intended to help answer, screen, summarize, and route business calls.
Can it help with spam and scam calls?
Caller screening is a central product goal. Fissible Phone is designed to give businesses more context and control before unknown callers interrupt the workday.
Do I need to understand SIP, PBX, or Twilio Studio?
Long term, no — hiding telecom complexity behind a clean iOS experience is the goal. During early access, connecting your Twilio account involves some guided setup, and managed onboarding is planned.
Is there an Android version?
Fissible Phone is iOS only today. Android interest is being measured for future planning.
Get early access to Fissible Phone
Fissible Phone is in active development. Join the early access list to follow progress, test the app, and help shape the business phone system we’re building for iPhone-first teams.
Download on the App StoreBuilt by Fissible for small businesses that need a smarter, cleaner way to handle calls. Fissible Phone is not affiliated with or endorsed by Twilio.