# OTP delivery testing on real devices

> Last updated: 2026-06-12. Product: https://trustrouting.com/product

## What this is

**TrustRouting** helps fintech, banking, and messaging teams verify OTP and A2P SMS delivery on **real Android handsets with their own SIM cards**. The platform captures what the phone actually received — not only what a supplier DLR reported.

## Why OTP testing fails with DLR-only tools

One-way delivery receipts can show success while the user never gets the code. Common causes include grey routes, delayed failover, sender ID filtering, and RCS-to-SMS fallback gaps. Real-device monitoring closes that gap by collecting handset-level evidence.

## What TrustRouting captures

- SMS and OTP arrival time (delay vs send timestamp when available)
- SMSC and routing metadata where exposed by the device
- RCS vs SMS channel behaviour
- Call and voice-related records for ANI testing workflows
- Exportable XLSX for compliance, QA, or supplier disputes

## Typical use cases

- **Banks & fintech** — prove OTP latency and delivery path before a market launch
- **CPaaS & aggregators** — independent proof when a customer disputes delivery
- **QA teams** — regression testing after routing or supplier changes
- **MNOs** — monitor how traffic lands on live SIMs in target networks

## How to start

1. [Install](https://trustrouting.com/install) the Android agent on a dedicated test phone
2. Trigger real OTP traffic to that SIM
3. Review results in the [web admin panel](https://admin.trustrouting.com)
4. Start with a **2-day trial** — details in [pricing.md](https://trustrouting.com/pricing.md)

## What TrustRouting is not

- Not a pool of shared test numbers
- Not synthetic traffic generation
- Not a replacement for MNO interconnect changes — it provides evidence for your operations team

## Related

- [Real device vs synthetic testing](https://trustrouting.com/real-device-vs-synthetic-testing.md)
- [Enterprise solutions](https://trustrouting.com/solutions/enterprise)
- [Support](https://trustrouting.com/support) · [Contact](https://trustrouting.com/contact)