Cisco CP-6821, 2,5" LCD, 2x10/100, PoE, MPP, bez adaptéru - diskuze

Cisco IP Phone 6821
Řada 6800 kombinuje atraktivní, nový ergonomický design se spolehlivostí bezpečné šifrované komunikace. Telefony nabízejí pokročilé funkce telefonování IP a širokopásmové zvukové schopnosti díky snadno použitelném a plnohodnotné hlasové komunikaci.

Audio
Codecs: G.711 (A-law and m-law), G.722.2, G.722, G.729 (a, b, ab), ILBC, iSAC, OPUS
DTMF: In-band, out-of-band (RFC 2833), and SIP INFO
MOS Score Reporting (Telchemy)

Network
Cisco Discovery Protocol
DHCP (RFC 2131)
DHCP VLAN Options
DNS: A record (RFC 1706), SRV record (RFC 2782)
Global Discovery Services (GDS)
HTTPs Support for XSI Services
IPv4 (RFC 791)
IPV6 (RFC 2460): System Interoperability Testing Required
LLDP
MAC address (IEEE 802.3)
NAPTR
NAT, (STUN)
Peer Firmware Sharing
SIP protocol support (RFC 3261 and companion RFCs)
SNTP (RFC 2030)
TR.69 provisioning: System Interoperability Testing Required
UDP and TCP
Zero Touch Provisioning

Security
802.1X authentication
Configurable Ciphers
Customer Device Activation (CDA: formerly known as EDOS) Certificate Upload and Encryption Hash Selection
Digest authentication
Encrypted configuration files
HTTPs secure provisioning
Mandatory/Optional Secure call
Media encryption via SRTP with AES-128 or AES-256
Pass
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