Beetel C11 vs C51: Which Landline Phone for Your Office or EPABX?
Short answer: pick the Beetel C11 (₹599) for any phone that only needs to make and take calls: cabins, rooms, kitchens, store rooms and factory floors. Pick the Beetel C51 (₹999) for the few desks where seeing the caller's number matters, usually reception, the owner's cabin and accounts. Both are corded analogue phones that work on a normal landline and as EPABX extensions; the ₹400 difference buys the caller ID screen. Prices include GST and delivery across India is free.
Beetel C11 vs C51 side by side
| Point | Beetel C11 | Beetel C51 |
|---|---|---|
| Type | Corded landline phone | Corded landline phone |
| Caller ID screen | No | Yes |
| Features named in the listing | Flash, pause, redial, ringer sound control, mute | Caller ID, no batteries or charging needed |
| Works with landline and EPABX | Yes | Yes |
| Listing suggests it for | Cabins, rooms, kitchens, factory floors | Reception, owners, accounts |
| Colour | See product page | Black |
| In stock on 27 Oct 2026 | 14 | 20 |
| Price | ₹599 | ₹999 |
What does the extra ₹400 get you?
Only one thing that matters day to day: a screen that shows who is calling. Everything else about the two phones is the same idea. Both plug into a wall socket or an EPABX rosette with an RJ11 cord, both work in tone dialling, and both are wired phones, so there is no handset battery to charge.
The C11 listing names flash, pause, redial, ringer control and mute. Flash is the key you press to transfer a call on most EPABX systems, so the C11 handles transfers fine. What it cannot do is show a number. The C11 listing itself says so and points to the C51, B25 or M71 when you need caller ID.
When is caller ID worth paying for?
Caller ID earns its cost on phones that answer outside calls or many internal calls:
- Reception and front desk. Seeing a regular customer's number lets staff greet them by name and pick up the right file.
- Owner or manager's cabin. You can decide whether to take a call now or let it go back to reception.
- Accounts and purchase. Missed calls from suppliers and banks are easy to return when the number is on screen.
- Doctor's cabin or nursing station. On an EPABX that sends internal caller ID, the screen shows which extension is calling, so a call from the ward is not mistaken for one from the pharmacy.
For a store room, kitchen, gate cabin or classroom, the caller is nearly always reception or one known person. Paying ₹400 more per phone there adds nothing.
Will caller ID work on my EPABX?
The C51 shows a number only if the line feeding it sends one. On a direct landline, your telephone provider must have caller ID switched on. Behind an EPABX, the exchange must pass caller ID to its extensions. Among the models on our store, the CCL 108 (₹3,799) listing states internal and trunk caller ID in both FSK and DTMF modes, so a C51 on it can show both outside numbers and extension numbers. For other exchanges, check the product page or ask us on WhatsApp before you buy C51s for every desk. If you run outside calls through a SIM, the GSM gateway guide explains how the caller's mobile number reaches the phone.
What the choice costs on a full kit
The gap grows with the number of phones. These are ready kits on our store with the same exchange and either phone:
| Exchange | With C11 phones | With C51 phones | Difference |
|---|---|---|---|
| CCL 104B + 2 phones | Combo-CN3: ₹3,699 | Combo-CN143: ₹4,399 | ₹700 |
| CCL 104B + 3 phones | Combo-CN34: ₹4,349 | Combo-CN230: ₹5,399 | ₹1,050 |
| CCL 104B + 4 phones | Combo-CN95: ₹4,999 | Combo-CN144: ₹6,399 | ₹1,400 |
| CCL 206 + 6 phones | Combo-CN234: ₹8,400 | Combo-CN98: ₹12,070 | ₹3,670 |
| CCL 232 + 32 phones | Combo-CN106: ₹36,500 | Combo-CN258: ₹47,839 | ₹11,339 |
On a 32-phone system, all-C51 costs over ₹11,000 more. A smarter route is a C11 kit plus two or three loose C51s for the desks that need them. For example, Combo-CN95 (₹4,999) plus one extra C51 (₹999) gives you a 4-extension system with five phones, one of them showing caller ID, for ₹5,998.
Choose the C11 if…
- The phone sits in a room, cabin, kitchen, store, classroom or on a factory floor.
- It mostly gets calls from reception or one known person.
- You are fitting many extensions and want to keep the budget down.
- You want spare phones to swap in when one gets damaged.
Choose the C51 if…
- The phone answers outside calls: reception, front desk, owner's cabin, accounts.
- Your landline has caller ID enabled, or your EPABX passes caller ID to extensions.
- You want to see missed callers' numbers and call them back.
Need a phone you can carry around, or one for a wall? The Beetel X-90 cordless (₹1,990) has caller ID and a speakerphone, and the Beetel B25 (₹650) is listed as wall mountable with a display. See all phones in landline telephones and kits in intercom and telephone combos. For the full price picture by size, read the EPABX price guide.
FAQ
What is the difference between Beetel C11 and C51?
Both are corded landline phones that work with EPABX systems. The C51 has a caller ID screen and costs ₹999; the C11 has no screen and costs ₹599.
Does the Beetel C11 show caller ID?
No. The C11 has no display. Its listing recommends the C51, B25 or M71 when you need to see the calling number.
Can I transfer calls on an EPABX with a Beetel C11?
Yes. The C11 has a flash key, which most EPABX systems use for call transfer. The exact key sequence is in your exchange manual.
Why is caller ID not showing on my Beetel C51?
The line or EPABX must send caller ID. On a direct landline, ask your provider to enable it; behind an EPABX, the exchange must support caller ID on extensions.
Do the C11 and C51 need batteries or a power plug?
The C51 listing says it needs no batteries or charging, and the C11 is a plain corded phone. Both take what they need from the telephone line.
Prices are NavKar Systems website prices on 27 October 2026, inclusive of GST, and may change.
