Screen : Large screen 5 line x 29 character display Lines : 1 Networking : Voice Codecs : G711 Quality Of Service : Network Protocols : TDM Features : 12 label-less call appearances/feature buttons in 2 pages. Large Message Waiting indicator. 4 softkeys. Hearing aid compatible Power Supply : Dimensions : 20.3 x 20.3 x 11.4 cm Weight : 1.1 Kg

Screen : 5" Graphical TFT Color Display, 320 x 240 Pixel Resolution Lines : 1 Networking : 10/100BASE-T Ethernet connection through two RJ-45 ports Voice Codecs : G.711a, G.711, G.729a, G.729b, and G.729ab and iLBC audio-compression codecs Network Features : Cisco Discovery Protocol; IEEE 802.1 p/q tagging and switching Signaling protocol support : Skinny Client Control Protocol (SCCP); supports both SCCP and Session Initiation Protocol (SIP) Features : Full-duplex speakerphone with acoustic echo cancellation, Directories Key, Settings Key, Navigation Cluster with 'Select' Button Power Supply : IEEE 802.3af Power over Ethernet (PoE), or local power through an optional power adaptor Dimensions : 20.83 x 26.67 x 15.24 cm Weight : 1.59 kg

Το Cisco IP Phone 8851 είναι μέρος της σειράς 8800, γνωστής για την αξιοπιστία και την απόδοση της σε επαγγελματικά περιβάλλοντα. Με μεγάλη έγχρωμη οθόνη, υψηλή ποιότητα ήχου και λειτουργίες που υποστηρίζουν τη βελτίωση της παραγωγικότητας, το τηλέφωνο αυτό είναι ιδανικό για χρήση σε γραφεία, αίθουσες συνεδριάσεων και άλλους επαγγελματικούς χώρους. Υποστηρίζει προηγμένες λειτουργίες VoIP και παρέχει ασφαλή και ευέλικτη συνδεσιμότητα, κάνοντας την επικοινωνία απλή και αποδοτική.

Screen : 5" high-resolution (800 x 480) WVGA color display Lines : N/A Networking : An internal 2-port Cisco Ethernet switch allows for a direct connection to a 10/100/1000BASE-T Ethernet network (IEEE 802.3i/802.3u/802.3ab) through a RJ-45 interface with single LAN connectivity for both the phone and a co-located PC. Voice Codecs : G.711 a-law and mu-law, G.722, G.729a, Internet Low Bitrate Codec (iLBC), and Internet Speech Audio Codec (iSAC) Network Features : User Datagram Protocol (UDP), Dynamic Host Configuration Protocol (DHCP), Gratuitous Address Resolution Protocol (GARP), Cisco Discovery Protocol Signaling protocol support : Skinny Client Control Protocol (SCCP) and Session Initiation Protocol (SIP) with Cisco call control Power Supply : Supports IEEE 802.3af PoE (Class 3). 48VDC is required; it can be supplied locally at the desktop using an optional AC-to-DC power supply (part number CP-PWR-CUBE-3=) or power injector (CP-PWR-INJ=). Dimensions : 229.1 x 257.34 x 40 mm Weight : 1.19 kg

Screen : Gesture-based, multitouch-capable capacitive touch screen Lines : N/A Networking : Two-port gigabit Ethernet switch, 10/100/1000Base-TX across LAN and 2nd port, 2nd port supports IEEE 802.3af PSE Voice Codecs : G.711, G.719, G.729ab, iLBC, Opus, G.722, G.722.1, G.722.1C, Polycom Siren 14 Network Features : Open SIP and Microsoft Lync 2013/Skype for Business SIP client, SDP, IETF SIP (RFC 3261 and companion RFCs), Two-port gigabit Ethernet switch - 10/100/1000Base-TX across LAN and 2nd port - 2nd port supports IEEE 802.3af PSE, 802.11 a/b/g/n (Wi-Fi) network connectivity, Manual or dynamic host configuration protocol (DHCP) network setup, Time and date synchronization using SNTP, FTP/TFTP/HTTP/HTTPS server-based central provisioning, Polycom Zero Touch Provisioning, Provisioning and call server redundancy supported, QoS Support - IEEE 802.1p/Q tagging (VLAN), layer 3 TOS, and DSCP - WMM (Wi-Fi multimedia), VLAN – CDP, DHCP VLAN discovery, LLDP-MED for VLAN discovery Signaling protocol support : Yes Features : On-screen virtual keyboard, 1x USB 2.0 Type A-compliant host port USB battery charging BC1.2 compliant, 1x USB 2.0 Micro-B device port, Integrated Bluetooth 4.0 and NFC, 3 illuminated mute buttons, Unicode UTF-8-character support Power Supply : LAN IN: Built-in auto-sensing IEEE 802.3at. PoE Device (Class 4) (requires full Class 4 power input on LAN IN for operation). Backward compatibility with IEEE 802.3af, LAN OUT: Built-in auto-sensing IEEE 802.3af power sourcing equipment (requires full Class 4 power input on LAN IN for operation) Dimensions : 38.3 x 33.2 x 7.5 cm Weight : 0.95Kg