TL;DR
Corporate SIM cards cost ₹249 to ₹349 a month plus GST per employee from Jio, Airtel and Vi, and each number stays with the company when someone leaves. A shared business number such as TalkEasy by GrowEasy (₹999 a month plus GST, unlimited users) keeps one number and the whole call history in one place. Either beats salespeople using personal SIMs.
Corporate SIM cards cost ₹249 to ₹349 a month plus GST per employee from Jio, Airtel and Vi, and each number stays with your company when the employee leaves. A shared business number such as TalkEasy by GrowEasy (₹999 a month plus GST for unlimited users) goes further: customers save one number, and the whole call history stays in one place.
Either option beats what many small businesses do today, which is let salespeople call customers from personal SIMs. When that salesperson resigns, the customers' calls resign with them.
What leaves with a salesperson who uses a personal SIM?
A SIM bought on an employee's own ID is registered to that employee, so everything attached to the number goes with it:
- The number your customers saved. Their next enquiry rings your former employee, who may now work for a competitor.
- The call history and any recordings, which sit on the employee's phone.
- WhatsApp chats, if they used that number for customer messages.
- Contacts saved on the phone rather than in your CRM or sheet.
You can ask for handover notes, but you can't take back a number that was never yours. The fix is to make the number the company's before the next hire starts calling.
How much does a corporate SIM card cost?
Each operator's cheapest corporate postpaid plan includes unlimited calls and some data.
| Operator | Cheapest corporate plan | Minimum order | Worth knowing |
|---|---|---|---|
| Jio | ₹249 + GST a month, 25 GB data | 10 connections per location, first order | Rental paid in advance |
| Airtel | ₹349 + GST a month, 30 GB data | No minimum number of employees | Advertises contact number retention when staff leave |
| Vi | ₹349 + GST a month, 30 GB data | Not stated; GST benefit from 10 SIMs | Prices shown for the Mumbai circle |
How we compared: prices from each operator's official corporate postpaid page, checked in September 2026. Prices exclude 18% GST unless stated.
For 10 salespeople, Jio costs 10 × ₹249 = ₹2,490 a month and Airtel or Vi 10 × ₹349 = ₹3,490, all plus GST. A 3-person team cannot meet Jio's first-order minimum, so Airtel is the simpler start. You may also hear these called CUG (closed user group) connections; the name matters less than the fact that the company owns the numbers.
Corporate SIMs or one shared business number?
Both keep numbers with the company. They differ in how many numbers customers see and where the call history lives.
| Question | Corporate SIM cards | Shared business number app |
|---|---|---|
| Numbers customers see | One per salesperson | One for the whole team |
| Where call history lives | On each phone, unless you add a tracker app | In one dashboard, logged against the number |
| When someone leaves | Reassign the SIM and report the new user | Remove the user; others keep answering |
| Hardware | A SIM slot in each phone | None; runs beside the personal SIM |
| Calls included | Unlimited | TalkEasy Pro: 3 hours talktime a day, then ₹49/hour |
| Mobile data | Included (25 to 30 GB) | Not included |
| Plan price for 10 people | ₹2,490 to ₹3,490 a month | ₹999 a month (TalkEasy Pro) |
The takeaway: choose corporate SIMs when each salesperson needs their own number and company-paid data. Choose a shared number when customers should reach "the business", not a person, and you want every call in one place. Many teams use both: company SIMs for data and field calls, a shared number for enquiries.
What DoT requires when a company SIM changes hands
Every user of a business connection goes through KYC. DoT made end-user KYC mandatory for all business connections and ended paper KYC from 1 January 2024 (PIB).
When a company SIM passes from one employee to another, DoT's August 2026 circular says the company's authorised representative must tell the operator about the change of end user within 3 working days, and make sure the new user completes biometric identification within 7 working days (DoT circular). Put both deadlines in your exit checklist.
Staff-exit checklist for phones and customer calls
Run this on the salesperson's last day, or earlier if they are joining a competitor.
- List their active customers from your CRM, sheet or call history, with the next step for each.
- Collect the company SIM and phone, or remove them from the business-number app so calls stop reaching them.
- Reassign the SIM to the next salesperson and inform the operator within 3 working days; the new user completes biometric ID within 7 working days.
- Keep business WhatsApp on a company number. If it runs on the company SIM, the account stays with the business.
- Save their call recordings and notes if your system keeps them, before removing access.
- Send the handover message below to every active customer the same day.
- Remove dashboard and CRM logins, and change any shared passwords.
Customer handover message (English and Hinglish)
Send it from the business number or the new owner's company SIM, as a message or read out on a call. Keep it to service: TRAI treats a call that mixes in an offer as a promotional call (TCCCPR 2025).
English:
Hello [Customer name], this is [New owner] from [Business name].
[Old owner] has moved on, and from today I am looking after your
[order / enquiry]. You can reach us on this same number,
[Business number]. Is there anything pending that I should pick up?
Hinglish:
Namaste [Customer name] ji, main [New owner], [Business name] se.
[Old owner] ab hamari team mein nahi hain, isliye aaj se aapka
[order / enquiry] main sambhal raha/rahi hoon. Aap hamein isi
number [Business number] par call kar sakte hain. Kuch pending ho
toh zaroor bataiye, main turant dekh leta/leti hoon.
Where TalkEasy fits
TalkEasy by GrowEasy is the shared-number option. The business number runs in the TalkEasy app alongside each salesperson's existing SIM, business calls stay separate from personal ones, and every call is logged against the business number whoever answers. Recordings are stored encrypted, with access limited to the admins you choose. Pro costs ₹999 a month plus GST for unlimited users, with 3 hours of talktime a day included.
Choose corporate SIMs instead if each salesperson needs company-paid mobile data, a number of their own on a physical SIM, or unlimited calling for long days on the phone. See how the TalkEasy business number works.
For the full list of number options and costs, read our business phone number guide, and for KYC and number types, the virtual number guide. If your team also sells on WhatsApp, see which numbers work with WhatsApp Business. Setting up the app on each phone is covered in our business number on mobile setup guide.
Last reviewed 24 September 2026.
