Idokoro Mail (Mobile Presence Application)
Receive a text message when your child reaches a planned destination
Register the destination address before your child leaves. Upon arrival, a text message is automatically sent to your handset. Feel at ease when sending your little ones to after-school activities or even a friend's house.
Function and application usage limits
You can voluntarily limit the number of recipients, number of e-mail, time periods for Web and applications usage, and other functions to prevent overuse. In addition, by setting the portal site to Yahoo! Kids, only safe and secure content will be delivered to your child.
Emergency alarm for added safety
If Emergency Tab is removed, 820T emits a loud alarm and Emergency Light flashes. 820T calls a preset number, and sends handset location to a preset address. Emergency Light doubles as a flashlight.

| Weight (approx.) | 116g (excluding Emergency Tab) |
|---|---|
| Dimensions (approx.) | 49.0 (W) x 97.0 (H) x 23.0 (D) mm (closed, excluding protrusions) |
| Talk Time (in normal reception conditions) | 220 minutes |
| Standby Time (when phone not in use) | 500 hours |
| Charging Time (approx.) | 120 minutes |
Average talk and standby times shown above are estimates under stable reception conditions with new, fully charged battery.
Some content may not be available for SoftBank 3G models. Please check availability when you switch your contract to these models.
- Location accuracy varies with GPS satellite reception.
- The limits set may be exceeded depending on usage conditions.
- Emergency alarm volume is at 100 dB (measured at 10 cm from 820T speaker). Ambient sounds, etc. may inhibit audibility.
- All screen shots simulated. Actual images may vary.



