Build It! SIM design

One of the key elements of building a wireless service is designing secure authentication on the network using the Subscriber Identification Module (SIM).

SIM design

Whether electronically distributed (eSIM) or a physical card inserted into your device, the SIM card is used to identify you on our network of networks. In this post, we are sharing some of the progress we've made so far and collecting members' feedback on some of the unique features we are planning.


SIM technology and specs

We are using secure, high-quality SIM/eSIM technology from one of the major SIM card manufacturers. The software on the SIM card can be programmed to do many things, and even small apps can run on it. From a technical standpoint, here's what we're planning.

SIM specs:

  • Configured to connect to Multiple Mobile Networks using our network code 302 100
  • 3G, 4G/LTE, 5G network compatible
  • voLTE support
  • Wi-Fi Calling support
  • Automatic authentication with AAA (i.e. premium Wi-Fi networks)
  • 1MB internal capacity
  • Up to 100 important numbers baked in including (WSPs, ISPs, Roadside assistance)
  • Built-in NFC support to enable future integrations secured by your SIM
  • Over the air updates (SMS/HTTP) will keep your SIM software fresh
  • Re-usable (leave, come back, we will always accept your SIM with open arms)


 eSIM (embedded SIM)

The easiest and fastest way to subscribe to get connected to dotmobile network is via eSIM. The list of benefits is long, from wastage (we tried to decrease the footprint of physical SIM as best as we could), but also function.It stays on your device for whenever you need it. Secondary line perhaps on iPhone? Apple Watch? All can get connected in an instance. And all that without needing to find a SIM card. Other features are identical to physical SIM. In fact it is the same SIM profile, just delivered electronically and placed securely on an embedded SIM module over the air (eSIM). 



Physical SIM card design

The dotmobile SIM card will be available for any phone that does not support eSIM or just a preference thing (we do not judge). You will be able to select the SIM preference during pre-order and when we launch the wireless service in your area.

We’ve spent a considerable amount of time designing the SIM and thinking about the details around security. Multi-network support. And impact on the environment. 90% of SIM card material almost directly goes to the bin.

First order of business was making the most of the physical SIM material our of recycled and biodegradable material, not from plastic. We also got rid of the long 16 number printed on the SIM card (too long to enter), but also a security risk for unauthorized port-outs or sim swaps. You can read more about it here.

Let us know what you think. We are still iterating before manufacturing and any bit of feedback helps.

 

SIM card feature list:

  • SIM code simplifies registering your SIM through the app, 6 letters instead of 16 numbers
  • Tri-punch design for standard, micro, and nano SIM card sizes
  • QR code opens the app to register the SIM, or download it if not installed
  • Made from biodegradable, recycled materials to reduce environmental impact

 

Comments
SALITH BUHARDEEN
14:00 03/02

eSim is the best

ANONYMOUS MEMBER
22:56 03/01

bring on your service

SRAVAN KUMAR REDDY
22:18 03/01

Really waiting for the service. Very excited about the first MVNO. I had the first hand experience of using an MVNO in the UK (Lyca) which disrupted the market there. Just wish it happens the same here when the service launches.

ANONYMOUS MEMBER
20:04 03/01

what if i change my smartphone from Android to iPhone?

ANONYMOUS MEMBER
15:17 03/01

Will there be an option for eSIM?

ANONYMOUS MEMBER
15:14 03/01

It looks more attractive and practical than your typical SIM card!

ANONYMOUS MEMBER
15:12 03/01

Pleasantly surprised by how stylish the sim card design is. I'd take it over any of the big 4's sim concepts! Small details always add to the user experience, I'm glad you're not discounting them

ANONYMOUS MEMBER
11:24 03/01

Will you have a list of phones supported for esim? I have global LG g7 dual sim phone and some providers support esim and some don't on my phone?

ANONYMOUS MEMBER
08:29 03/01

I am looking forward to use your service. When will it be available?

JASON L
06:47 03/01

I'm really excited to try out eSIM for the first time!

ANONYMOUS MEMBER
02:43 03/01

The sim concept is so cute! Love the organic-looking, "up-cycled" design. Although I'll probably be using an e-sim for my personal use, I think it's great that you're offering a physical option, particularly for older users like my parents (whose phones still primarily relay on sim cards).

ANONYMOUS MEMBER
02:10 03/01

Great, so how can I get the physical sim?

ANONYMOUS MEMBER
01:28 03/01

Love it. Now I will have to make a decision to get a physical or esim. Thanks

ANONYMOUS MEMBER
01:17 03/01

So looking forward to using your service. Thank you for your environmental concerns when designing your SIM card.

ANONYMOUS MEMBER
11:15 02/28

Thanks for sharing :)

ANONYMOUS MEMBER
11:32 02/26

Love it. Hope you have service in my area!

ANONYMOUS MEMBER
21:09 02/23

Can't wait to purchase one of these:o)

ARUN NATARAJAN
17:57 02/21

Thumbs up for sharing all this info.. good to finally see a telecom provider that is willing to talk/share/discuss with customers. Good to see the progress and eagerly awaiting service launch.

ANONYMOUS MEMBER
21:53 02/19

Waiting in anticipation!

ANONYMOUS MEMBER
11:13 02/13

Love how much progress you're making. Keep it up!

NO THANKS
07:29 02/12

Really looking forward to launch!

AMANDA “A KILLI” KELLY
03:59 02/10

Super excited to check this out

ANONYMOUS MEMBER
10:31 02/08

slick design. way to go !

ANONYMOUS MEMBER
05:28 02/07

PIN1 1234

ANONYMOUS MEMBER
12:34 02/07

I love PIN 1234

ANONYMOUS MEMBER
12:58 02/06

Will I be able to port my current phone number over to DOT

THOMAS SUTLOVIC
13:43 02/06

You should be able to, you own your number in Canada

PASCAL DESGAGNÉ
00:02 02/26

Awesome, I was wondering about that. Thanks!

ANONYMOUS MEMBER
17:33 02/05

What would happen with eSims, if I want to move devices?

ANONYMOUS MEMBER
03:30 02/06

If they do it right, especially since it’s reusable it should be a matter of it coming over via iCloud back up on iPhone or the Google equivalent. But regardless since it’s reusable if it’s done right, re sync it with your app.

SIMON FORGUES
14:42 02/05

That's a really nice design, dotmobile.

ANONYMOUS MEMBER
14:33 02/05

I love that it's re-usable! I've hated in the past that I had an old "travel" sim that was worthless because I had to order a new sim to connect to the same provider. I think I still have a giff gaff sim from my Scotland trip 5 years ago.

ADELA KUNIKIDA
19:42 02/04

Great design! Can't wait for the launch!

THOMAS SUTLOVIC
16:25 02/04

I love everything about this idea! I love the reusable cardboard, the sim features (didn't know it could have nfc support) and letters! All super great and can't wait for the launch!

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