Fixed on mobile
Fixed on mobile means your business number forwards calls directly to your mobile phone over the mobile network. No app to install, no internet connection needed, no VoIP quality issues. The call arrives as a normal phone call on your mobile — reliable, clear, and always working.
This is the most reliable way to receive business calls on a mobile device. Your mobile phone is part of CallFactory’s hybrid phone system, working alongside desk phones, softphones, and SaaS applications.

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Benefits of fixed on mobile
See how fixed on mobile keeps your team reachable without apps or internet.
No app, no internet
Calls are delivered over the mobile network, not over the internet. No app that closes in the background, no dependency on Wi-Fi or mobile data. Your phone rings like any normal call.
Always reachable
As long as your mobile phone has network coverage, you receive calls. No VoIP registration to maintain, no test-dialling needed to check if calls are getting through.
Part of a hybrid system
Your mobile works alongside desk phones, softphones, and SaaS applications in the same phone team. Mix devices freely — all under the same business number.
How fixed on mobile works
When someone calls your CallFactory number, the platform routes the call to your mobile phone over the traditional mobile network — the same way any normal phone call arrives. There is no app involved, no VoIP connection, and no dependency on your internet.
Your mobile phone is simply a forwarding destination in your CallFactory setup. You can be the only destination (all calls go to your mobile) or one of several in a phone team. The platform handles the routing — you just answer the phone.
The most reliable mobile option
Softphone apps on mobile have a known problem: they can close in the background, enter sleep mode, or lose their VoIP registration without you noticing. The result is missed calls — and you do not know about it until a customer complains.
Fixed on mobile avoids this entirely. Calls are delivered over the mobile network via our own interconnect. As long as your phone has mobile coverage, the call gets through. No app to keep alive, no internet connection to monitor, no VoIP infrastructure to manage.
Ask yourself: how important is it for you to receive every call? If the answer is very important, fixed on mobile is the right choice.
Know it is a business call before you answer
When a call is forwarded to your mobile, you hear a short whisper message before you are connected to the caller — for example, “Sales line” or “Support call”. This tells you instantly that it is a business call and which line it is coming from, before the caller hears you.
This is how your team distinguishes business calls from personal ones on the same phone. No guessing, no awkward greetings.
No apps on personal phones
Fixed on mobile removes the need for colleagues to install any app on their private mobile phone. No discussions about company software on personal devices, no awkward meetings about it. Calls arrive as normal phone calls over the mobile network — nothing to install, nothing to configure, nothing to maintain.
This is especially valuable when team members use their own phones. Everyone stays reachable for business calls without compromising their personal device.
Phone teams on mobile
Fixed on mobile is not limited to a single person. Multiple team members can receive calls on their mobile phones as part of the same phone team. The platform rings them in the order you define — sequential, round robin, or simultaneous.
Team members can switch their availability on or off from the team dashboard. This creates a flexible setup where your team is reachable on their mobiles without being tied to a desk or an office.
Start today with zero investment
For startups, fixed on mobile means you can have a professional business phone system running today — with no investment in hardware. Get a CallFactory number, add your team’s mobile phones, and you are live. Callers reach your business number, your team answers on their mobiles, and the whisper message tells them it is a business call.
For existing teams, it is just as easy. Want to open a support line or set up a dedicated sales number with 10 phones? Add a new CallFactory number, configure the mobile phones as destinations, and it just works. No desk phones to buy, no IT project to plan, no waiting.
Combine with other devices
Fixed on mobile works alongside every other device type in CallFactory’s hybrid phone system. A typical setup might ring a desk phone first, then fall back to a mobile if no one answers at the desk. Or ring a mobile and a softphone simultaneously so the team member can answer on whichever device is closest.
You configure this from your dashboard. Change the order, add or remove devices, and switch between setups at any time. Forwarding over the mobile network may incur additional per-minute charges depending on the destination.
Powerful features included
Every Callfactory phone system comes loaded with intelligent features that give you greater control, flexibility, and peace of mind — right from day one.
API integrations
Tell us what you need, we build the endpoints. Our private API lets you integrate CallFactory telephony into your own software — no generic library, no guesswork, no wasted development time.
Calendar-based call routing
Automatically route calls based on your schedule. Office hours, rotating shifts, holidays, and on-call rosters — calls always reach the right person at the right time.
Call filter
Block unwanted callers, allow only authorised numbers, or reroute specific callers to different destinations. The call filter keeps your business lines open for the calls that matter.
Call forwarding
Forward incoming calls to any landline, mobile, or team. Set rules based on time and availability — manage everything from your dashboard.
Call insights
Track call performance with clear data. See who called, when, how long, and where calls were routed — all from your dashboard.
Call notes
Capture every insight from every call. Add notes directly in your dashboard to keep follow-ups, customer requests, and action points in one place.
Call queue system
Every business has peak moments. The queue system catches callers before they hang up, keeps them informed with hold music or messages, and connects them to the next available team member …
Call recording
Automatically record incoming business calls. Listen back via the dashboard, download recordings, and use them for training, quality monitoring, and compliance.
Central business number
One phone number for all your locations. CallFactory routes callers to the nearest branch automatically — by area code, postcode, or phone menu.
Change final destinations
Forward calls to any phone — mobile, landline, or VoIP. Change destinations anytime through the dashboard, add as many extensions as you need, and route calls to colleagues anywhere in the world.
Custom solutions
Our flexible IVR platform allows us to build powerful, custom solutions tailored to your business operations.
Custom telephony
Incident hotlines, automated order lines, SMS confirmations, self-service systems — if you can describe it, we can build it on our IVR platform.
Dedicated IVR servers
Your own IVR server with full control. Build custom call applications, connect AI platforms, and scale from 4 to 200+ channels. The natural upgrade from our private API when you need more.
DenyList routing
Maintain a list of blocked phone numbers that are automatically prevented from reaching your team. Request a block and it takes effect instantly — temporarily or permanently.
File-based routing
Upload a CSV, TXT, or JSON file to update call routing in bulk. Change hundreds of rules at once — PIN codes, allowlists, denylists, area codes, or entire IVR flows.
GitHub routing
Manage call routing from your GitHub repository. Push a routing file, and CallFactory fetches, validates, and applies the changes automatically — with full version history and instant rollback.
International telephony
Get local phone numbers in other countries and route calls across borders. CallFactory is a registered telecom operator in 14 countries — reliable international telephony without complexity.
IVR toolkit
Build custom call flows with structured actions. Play audio, collect input, stream to AI, dial, transfer, and record — all developer-friendly and AI-ready.
Peak traffic management
Handle sudden call spikes from campaigns, media exposure, or seasonal peaks. Our cloud-based platform absorbs the volume so no caller hears a busy tone.
Phone menu (IVR)
Help callers reach the right person immediately. With a simple menu, you route every call to the right employee or department.
PIN code routing
Route calls based on a PIN code. Each PIN leads to a different destination — ideal for VIP clients, internal lines, restricted services, and multi-tenant setups.
Smart voicemail system
When no one picks up, callers leave a voicemail that arrives in your inbox as an audio file. Custom greetings, multiple recipients, and no extra software needed.
Star a call
Star a call helps you focus on the conversations that truly matter. With one click, important calls stand out.
Statistics by email
Receive daily, weekly, or monthly call reports directly in your inbox. See call volume, duration, peak times, and missed calls — without logging in to anything.
Text to speech assistant
Type your message, choose a voice and language, and it is ready in seconds. Professional voice messages for greetings, voicemail, queues, and menus — no recording equipment needed.
VIP whitelist
Restrict your business line to approved callers only. Only numbers on your whitelist get through — everyone else is blocked or sent to voicemail.
Voicebot
AI-powered voice assistants built on our IVR platform. Automate incoming calls with natural conversation, data lookups, and smart routing.
Webhook call routing
Route calls dynamically using your own webhook. When a call comes in, CallFactory asks your server where to send it — full control in real time.
Welcome message
Greet every caller with a professional message before the call is connected. Record your own, use a voice actor, or generate one instantly with text-to-speech.
Whisper tone
A short audio message tells you which number was called before you answer — whether it is a business call to your mobile, a specific webshop, or an international number.
FAQ fixed on mobile
Answers to frequently asked questions about using your business number on a mobile phone.
No. Calls are delivered over the mobile network as normal phone calls. No app, no software, no configuration on your phone.
Yes. Calls arrive over the mobile network, not over the internet. As long as your phone has mobile coverage, you receive calls.
Yes. Business calls forwarded via CallFactory show as coming from your business number on your phone display, so you can distinguish them from personal calls.
Yes. Add multiple mobile phones to your phone team. The platform rings them in the order you choose — sequential, round robin, or simultaneous.
Yes. Your mobile and desk phone can be in the same phone team. For example, ring the desk phone first and fall back to the mobile if no one answers at the desk.
Yes. Use the team dashboard to toggle your availability. When you switch off, calls are routed to the next available team member or to voicemail.
Softphone apps can close in the background, enter sleep mode, or lose their VoIP registration without you noticing. Fixed on mobile delivers calls over the mobile network — no app to keep alive, no internet dependency. Every call gets through as long as you have mobile coverage.









