This document introduces the contents of the China Telecom Tianyi Navigation client user manual (Brew version), including business introduction, product features, and usage instructions.
This manual provides an overview of the Tianyi Navigation client, a GPS‑based navigation system developed for BREW‑platform mobile phones. It describes the service’s main features such as map browsing, real‑time voice guidance, bus‑transfer, group navigation, and a voice‑assistant for restaurant, hotel and ticket queries.
The document also includes ordering and cancellation procedures, detailed instructions for each function (Map, Navigation, Travel, Voice Assistant, Personal Area, Bus Transfer, Road Conditions, Group, Find Nearby), safety notices, and a GPS lecture explaining the underlying GPSOne technology and positioning accuracy. This manual is written in Chinese.
| Document version | V2.2 |
|---|---|
| Release date | November 2010 |
| Supported cities | 492 |
| Supported counties | 2784 |
| GPS accuracy (outdoor) | ≈5 m |
| GPS accuracy (indoor) | 5‑50 m |
| Supported speed range | 5‑100 km/h |
| Battery life (continuous navigation) | 3‑5 hours |
If the CDMA network signal is poor, navigation may fail; move to an area with a stronger signal and try again.
Navigation works at vehicle speeds from 5 to 100 km/h.
A typical phone battery can run the navigation for 3 to 5 hours continuously.