snom 821

2345

Snom 821 � �� VoIP-�� Snom Technology AG. � Snom 821 �� . �� SIP-�� VoIP-��, �� .

�� Snom 821 � �� Gigabit-Ethernet , �� Power over Ethernet. �� USB-�� Wi-Fi ��, �� . �� IP-�� Snom 821 �� LCD-��, �� . �� , �� , �� .

�� , �� IP-�� Snom 821 �� , �� . �� RJ12 �� . �� Snom EHS. �� Snom 821 �� , �� -��, �� OpenVPN.

�� Snom 821:

��
� ��: � �� ~ 900 ��.;
�� ~ 670 ��. ;
� �� -��;
� ��: FCC Class B, C� mark;
� �� 4 - 7 �� (�� USB).
��
� 1 x LAN, 1 x PC: RJ45 (Ethernet);
� Ethernet: 2 x IEEE 802.3/1 Gigabit Switch;
� �� Ethernet: IEEE 802.3af, Class 2;
� RJ-4P4C �� ;
� RJ-4P4C �� ;
� 1 x USB Type A, 1 x Type B;
� �� 5 ��, �� .
��
� �� TFT �� ;
� 3.5 ��, 320 x 240 ��;
� 37 ��, 9 ��;
� 4 �� 16 �� ;
� 12 �� ;
� �� ;
� �� ;
� �� ;
� �� ;
� �� 1000 ��;
� �� / �� ;
� �� ;
� �� ;
� �� , �� (�� 250 �� );
� �� ;
� �� /�� ;
� �� ;
� �� (�� );
� �� (�� );
� �� 12 �� ;
� �� ;
� �� ;
� �� ;
� �� ;
� �� URL;
� �� ;
� �� (DND);
� �� ;
� �� .
��
� �� WLAN �� USB, �� Wi-Fi �� (�� );
� �� (�� IP-��);
� �� ;
� �� (�� IP-��);
� �� ;
� �� ;
� ��, �� (�� IP-��);
� �� / ��;
� �� /�� (Client Matter Code);
� �� , �� ;
� �� ;
� �� ( RTP multicast);
� �� (�� .�.);
� �� snom CTI / snom OCS.
��, QoS
� �� HTTPS (��/��);
� Transport Layer Security (TLS);
� SRTP (RFC 3711), SIPS, RTCP, VLAN (802.1pq).
�� WEB ��
� �� HTTP / HTTPS;
� �� ;
� �� WEB �� snom CTI;
� �� ;
� �� (��, ��, syslog).
��
� G.711( a-, ?-) G.722, G.723.1, G.726, G.729AB, GSM, iLBC, AMR;
� �� (CNG);
� �� (VAD).
SIP � ��
� �� RFC 3261 UDP, TCP, TLS;
� ��/�� ;
� �� loose routing/strict routing;
� �� PRACK (RFC 3262);
� �� ;
� �� Early media;
� �� SIP �� DNS SRV (RFC 3263);
� �� (RFC 3264);
� �� (RFC 3842);
� �� (RFC 3265);
� �� (RFC 4235) �� /�� DTMF/ SIP INFO DTMF;
� STUN �� (�� NAT);
� ENUM (RFC 3261), NAPTR, (RFC 2915), rport (RFC 3581);
� REFER (RFC 3515);
� �� SIP �� (RFC 4662);
� �� BLA, BLF;
� �� .
��
� �� PnP;
� �� ;
� �� HTTP/HTTPS/TFTP;
� �� TR 069;
� �� DHCP;
� �� NTP.

� Snom 821 �� . �� SIP-�� VoIP-��, �� .