1. + 3 ~ + 15 a key to the buttons.
2. 15 group 32 bit number storage key, storage power lost never lost content.
3. flash off time according to different requirements, the standard for adjusting switch 600 milliseconds.
4. hands-free two level volume adjustable, LingYin high/low two level can be adjusted.
5. message indicator light, hands-free indicator.
6. calls, heavy dial indicator, hang up (flash broken), R key functions.
7. built-in modem music choice. The first 16
8. with built-in data interface, which can be connected computers, fax, telecommunications equipment.
9. forget accept line or hang up in good when, automatic accept line.