Piston Labs Network Technology
Last Updated: 2026-01-02
Purpose: Investor/sales reference for connectivity strategy
Executive Summary
Piston Labs uses LTE Cat-M1 devices with Soracom multi-carrier SIMs to ensure 10+ year device lifespan and carrier-agnostic connectivity. This avoids the mass hardware recalls that competitors faced during 2G/3G network shutdowns.
The Problem with 2G/3G
| Network | Status | Impact |
|---|---|---|
| 2G (GSM/GPRS) | Shutdown complete in US (AT&T 2017, T-Mobile 2024) | Dead |
| 3G (UMTS/HSPA) | Shutdown complete in US (all carriers by Feb 2024) | Dead |
| Legacy devices | Bouncie, older fleet trackers, cheap OBD dongles | Bricked |
Millions of connected car devices became e-waste when carriers shut down 2G/3G networks. Companies like Bouncie had to execute mass hardware replacements, causing customer churn and significant costs.
Our Solution: Teltonika FMM00A
The Teltonika FMM00A is a professional-grade OBD-II telematics device with future-proof connectivity.
Network Capabilities
| Feature | Specification | Benefit |
|---|---|---|
| LTE Cat-M1 | 4G low-power IoT variant | 10+ year network lifespan |
| LTE Cat-NB1 (NB-IoT) | Narrowband IoT | Ultra-low power fallback |
| 2G fallback | GSM (where available) | International roaming |
| US Bands | B2, B4, B5, B12, B13, B25, B26 | All major US carriers |
Why LTE Cat-M1?
- Carrier commitment: AT&T, T-Mobile, Verizon actively investing in Cat-M1 infrastructure
- IoT-optimized: Designed for low-bandwidth, always-on devices (exactly our use case)
- Power efficient: Extends device lifespan, important for OBD-powered devices
- Better coverage: Penetrates buildings/garages better than standard LTE
Our Solution: Soracom Connectivity
Soracom provides carrier-agnostic global IoT connectivity with pay-as-you-go pricing.
Traditional vs Soracom Approach
| Traditional Approach | Soracom Approach |
|---|---|
| Locked to one carrier (AT&T/Verizon SIM) | Multi-carrier SIM - roams across networks |
| Carrier sunsets network → device dies | Auto-switches to available network |
| US-only or complex roaming deals | Global coverage - same SIM works in 130+ countries |
| Contract minimums, overage fees | Pay-as-you-go - $0.06/day + data used |
| Manage carrier relationships | Single dashboard, API-first |
Network Fallback Chain
Primary: T-Mobile LTE Cat-M1
↓ (no signal)
Fallback 1: AT&T LTE Cat-M1
↓ (no signal)
Fallback 2: NB-IoT
↓ (international)
Fallback 3: 2G roaming (EU, LatAm where available)
Soracom Beam: Protocol Conversion
Our devices send raw TCP to Soracom Beam, which converts to HTTPS before hitting our Cloudflare Workers:
Teltonika Device → TCP → Soracom Beam → HTTPS → Cloudflare Workers
Benefits:
- No TLS certificates on device (simpler, more secure)
- Protocol conversion at edge (lower device power consumption)
- Easy endpoint switching (no firmware update needed)
Competitive Advantage
| Competitor | Network Technology | Risk |
|---|---|---|
| Bouncie | Was 3G, scrambled to 4G | Had mass device recalls in 2022-2023 |
| Zubie | Carrier-specific SIMs | Locked to one network's pricing/coverage |
| Cheap Amazon OBD | Often 2G/3G | Already dead or dying |
| Mojio | Carrier partnerships | Complex, limited flexibility |
| Piston (us) | LTE-M + NB-IoT + Soracom | Future-proof 10+ years |
Why This Matters to Investors
1. No Mass Hardware Recalls
- Devices won't brick when networks evolve
- Avoids costly swap-out programs competitors faced
- Protects hardware margin and customer relationships
2. Lower Churn
- Customers don't leave because device stopped working
- Service continuity builds trust and retention
- Reduces CAC by avoiding re-acquisition
3. Global Expansion Ready
- Same hardware works internationally (Canada, Mexico, Europe)
- No new SKUs or carrier negotiations for new markets
- Faster time-to-market for geographic expansion
4. Carrier Negotiation Leverage
- Not locked to one provider's pricing
- Can optimize for cost or coverage per-region
- Soracom handles carrier relationships
5. Predictable Unit Economics
- Pay-as-you-go cellular (no contract minimums)
- Costs scale linearly with active devices
- No surprise overage bills
Why This Matters to Customers
Consumer Messaging
| Concern | Our Answer |
|---|---|
| "Will this work in 5 years?" | Yes - LTE-M has 10+ year runway, backed by carrier investments |
| "My last tracker stopped working" | Ours won't - built on IoT-specific LTE, not legacy networks |
| "What about dead zones?" | Multi-carrier fallback finds the best signal automatically |
Fleet Messaging
| Concern | Our Answer |
|---|---|
| "We have trucks across the US and Canada" | Same device, same SIM, automatic roaming |
| "What if one carrier has an outage?" | Auto-switches to alternate carrier |
| "We got burned by 3G shutdown" | LTE Cat-M1 is the new long-term standard |
| "Hidden fees?" | Pay-as-you-go, ~$1.92/device/month all-in |
Technical Architecture
┌─────────────────────────────────────────────────────────────────┐
│ Teltonika FMM00A │
│ ┌─────────────┐ ┌─────────────┐ ┌─────────────┐ │
│ │ LTE Cat-M1 │ │ LTE Cat-NB1 │ │ 2G GSM │ │
│ │ (primary) │ │ (fallback) │ │ (roaming) │ │
│ └──────┬──────┘ └──────┬──────┘ └──────┬──────┘ │
│ └────────────────┼────────────────┘ │
│ │ Best available network │
└──────────────────────────┼──────────────────────────────────────┘
│ TCP (Codec8 Extended)
▼
┌─────────────────────────────────────────────────────────────────┐
│ Soracom Platform │
│ ┌─────────────┐ ┌─────────────┐ ┌─────────────┐ │
│ │ Multi-IMSI │ │ Beam │ │ Console │ │
│ │ SIM Card │ │ TCP→HTTPS │ │ Management │ │
│ └─────────────┘ └──────┬──────┘ └─────────────┘ │
└──────────────────────────┼──────────────────────────────────────┘
│ HTTPS
▼
┌─────────────────────────────────────────────────────────────────┐
│ Cloudflare Workers │
│ Telemetry ingestion, processing, storage │
└─────────────────────────────────────────────────────────────────┘
Network Lifespan Projections
| Technology | Expected Sunset | Our Exposure |
|---|---|---|
| 2G GSM | Complete (US) | None (fallback only for international) |
| 3G UMTS | Complete (US) | None |
| 4G LTE | 2035+ | Low (Cat-M1 is subset, will outlast voice LTE) |
| LTE Cat-M1 | 2040+ | Primary - carriers actively expanding |
| 5G NR | N/A | Future upgrade path, same Soracom SIM |
Bottom line: Our devices have a 10-15 year connectivity runway before any network concerns.
Cost Summary
See Infrastructure Cost Analysis for detailed breakdown.
| Component | Monthly Cost | Notes |
|---|---|---|
| Soracom base fee | $1.80/device | $0.06/day |
| Soracom data | ~$0.12/device | ~1.6MB/month @ $0.073/MB |
| Total cellular | ~$1.92/device | Pay-as-you-go, no minimums |
Appendix: Soracom Resources
- Soracom Coverage Map: https://soracom.io/iot-connectivity/
- Soracom Beam Docs: https://developers.soracom.io/en/docs/beam/
- LTE Cat-M1 Explained: https://www.soracom.io/blog/what-is-lte-m/
Revision History
| Date | Changes |
|---|---|
| 2026-01-02 | Initial document |