![Inventec 2509 User Manual Download Page 5](http://html.mh-extra.com/html/inventec/2509/2509_user-manual_2083832005.webp)
Confidential Information. All Rights reserved by Inventec Multimedia & Telecom Corp.
1-2
Features & System Requirements
Thanks again for choosing this IP Phone. This IP Phone is a
sophisticated, state-of-the-art internet phone system. Instead of
using conventional PSTN (land line) phone line, it uses IP data
stream to deliver and receive voice calls through internet, you
can make free* calls to other IP Phone, or making / accepting
calls to / from regular land line phone / mobile phone, and the
cost is much cheaper.
*
Depending on your service provider. In most cases making
phone call to another IP phone via internet is free.
For additional features of this IP Phone, please refer to
following list:
1. Multi-protocol support: This IP phone supports multiple
network protocols for communication and management:
TFTP, FTP, RTP, SNTP, HTTP, SIP, DHCP, PPPoE, and
Telnet.
2. QoS Support: Maximizes network performance.
3. Supports all major network connecting methods.
4. Supports headset and speakerphone for hands-free
operation.
5. Standard CCITT numeric keypad (0-9, * and #) providing
fully phone dialing support, with built-in DTMF tone
generator (You can use numeric keypad to access on-line
banking service, dial extension number…etc.).
6. Large, clear LCD display for information and phone status.
7. Comfortable handset, best for long time operation.
8. 5 speed-dial keys.
9. Access all advanced settings by web browser of your