eSIM: Your business number, straight onto your mobile
Wildix – where everything connects, and everything works together.
No app. No switching.
No second phone.
Wildix eSIM puts your business number directly into your smartphone’s native dialler. Business calls work exactly like personal calls, just select your work line and dial.
What is a Wildix eSIM?
Wildix eSIM is a digital SIM that places your business number directly onto your smartphone, fully managed through your Wildix phone system, with no extra hardware required.
- No app to open
- No second handset to carry
- Clear separation between work and personal calls
- Fully managed and controlled by your IT team
It’s business mobility, without the usual compromises.
Wildix eSIM: Your business number in your phone’s dialler
With so many things to love…our hero features:
Works in your phone’s regular dialler with instant eSIM activation — no hardware, no apps, no fuss.
AI call recording, transcription, and automatic CRM updates.
Transfer, hold, voicemail, hunt groups, and extension dialling, all from your mobile.
Use and add local numbers from multiple countries, keeping business separate on personal phones.
Data package included, with voice calls that don’t consume mobile data.
Secure calling which works across major GSM networks with high compatibility on modern eSIM‑ready devices.
Full Microsoft Teams Integration – Don’t settle for basic calling. By using CLASSOUND, you can unlock the full power of the Wildix PBX—including advanced call routing and AI features—directly inside Microsoft Teams. One interface, zero friction, and global reach.
What can the eSIM solve for you?
The problem
If your team is making business calls from personal mobiles, your company is probably missing out on more than you realise:
- Calls aren’t logged in your CRM
- No recordings, no audit trail
- Customer knowledge walks out when people leave
- You can’t measure or coach on what you can’t see
- Employees risk exposing their personal number
From the business’s perspective? Those conversations never happened.
The Solution
- A Wildix eSIM puts your work number straight into your phone’s native dialler, no apps, no switching, no second device.
- Your team can make and take business calls instantly on the phone they already use.
- No app to install
- Business line added to a personal phone in minutes
- Immediate adoption for mobile and frontline teams
- Every business call is automatically logged, recorded (where enabled) and synced with your CRM, giving you the same oversight and compliance as a desk phone with the full mobility of a smartphone.
Some handy stats…
96%
of employers would allow new business eSIM’s on their personal mobile phones to replace traditional desk phones.
80%
of frontline workers are in favour of using eSIM technology on their personal mobile.
99%
of IT managers would be willing to retire landlines in favour of mobile-only communications using eSIM technology.
Source: Wildix
No app required. Just dial.
Collaboration apps have their place but when it comes to making calls, people often default to their phone’s native dialler. It’s faster. It’s familiar. It’s what they trust.
Wildix eSIM works directly inside that native dialler, ensuring every business call is captured, logged and managed through your phone system.
- No behaviour change.
- No new software to learn.
- No lost data.
Your team simply dials as normal and your business retains full visibility and control.
Professional Calling without the Hardware
Professional calling, without the hardware
Desk phones and DECT systems work well in fixed locations, but they come with shipping, wiring and ongoing maintenance. Wildix eSIM delivers the same professional features, transfers, recordings, even AI‑powered insights, through a fully digital setup. You can scale your team instantly, with no devices to deploy and no plastic on the desk.
Turn invisible business calls to actionable insight
100% of call made with Wildix business eSIM becomes part of your company’s communication data.
Here comes our AI friend, with calls automatically recorded, transcribed and summarised.
Conversations head directly into your Sales Intelligence and your CRM
No lost data. Every conversation at your fingertips to help improve the next call.
Insights help your business from training to improving team performance and in turn, customer satisfaction.
Your Business Phone, but reimagined.
Works just like your usual phone
Say goodbye to juggling multiple devices or separate apps. With the Wildix eSIM, your business number lives right in your phone’s native dialler, working seamlessly alongside your personal number.
Built-In Security, Built the Right Way
The Wildix eSIM routes every call through your company’s phone system, ensuring full visibility, recording capability, and enterprise-level security as standard.
Your Full Office, In Your Pocket
Transfer calls, pick up voicemail, dial colleagues by extension, or record a conversation, all from your mobile using simple feature codes. No desk phone required.
Every Call, Tracked and Accounted For
Business calls made through your Wildix eSIM are automatically logged and can be recorded, keeping your communications compliant and your records complete.
Up and Running in Minutes
Each user receives a QR code to scan, and within minutes they’re making and receiving calls on their business number, no technical knowledge needed. Easy, peasy.
Call Local, From Anywhere
Your team can make outbound calls using local numbers from any country, no matter where they’re based — perfect for businesses with an international presence or remote teams.
Industries already using the Wildix eSIM
Retail
Store teams stay connected with customers and head office, on the floor or in the stockroom.
Manufacturing
Production and maintenance teams communicate reliably across the factory without juggling devices.

Hospitality
Managers and front‑of‑house staff stay reachable throughout the venue with work and personal calls kept separate.
Estate Agents
Agents call clients on local numbers while out on viewings or meeting prospects.
Automotive
Service and sales teams stay connected with customers from the showroom, workshop, or on test drives.

Legal
Lawyers maintain secure, compliant call recording in the office, remotely, or in court.
Education
School staff stay connected across campus while keeping work and personal life clearly separate.