China ip phone KNZD-59 desktop intercom telephone ,with keypad and microphone loudspeaker

Desktop intercom handsfree Vandal resistant telephone system Loudspeaker KNZD-59

Applications:

1. Strong compatibility of the system extended,support standard SIP 2.0 (RFC3261) and related RFC agreement;

2. Support one bottom call the dispatcher station,host, specify the terminal;

3. Support digital keyboard;

4. Support three shortcuts keypad;

5. Provides alarm, monitor, intercom, broadcast function;

6. full-duplex talk functions;

7. Use advanced echo elimination technology;

8. Application: show Caller id, Contacts.

9. Speakers and microphone sensitivity adjustable;

10. Optional G. 729, G. 723, G. 711, G. 722, G. 726 and many ways of voice coding ;

11. System provides the recording and query the recording files at any time ;

12. Setting via a WEB interface;

13. Online software upgrade;

14. Support power 1 w;

Koontech We are factory specializing in the manufacture and export of telephone, especially in industrial emergency telephone.SIP Phone. ours products waterfroof, Vandal resistant with top quality. we mainly devote to the R&D,manufacture and sales of the Telephone remote management system of tourists emergency help phone,special telephone terminal and RFID. The production covered by Analogue / Fiber optic system and wireless GSM telephone system.