Yealink SIP-T28P – 6 linija, SIP, PoE, XML

Yealink SIP-T28 je novi IP telefon opremljen najmodernijim širokopojasnim audio kodekom G.722.  Pruža visoko kvalitetan HD glas, inovativno korisničko sučelje i elegantan dizajn. Podržava 6 korisničkih računa, BLF / BLA, 16 programibilnih tipki, te omogućuje povećanje radne učinkovitosti.

Specifikacija:

•        Podržava do 6 VoIP linija
•        HD kvaliteta glasa – codec G.722
•        Full-duplex hands-free Speakerphone
•       16 programibilnih funkcijskih tipki, 4 soft tipke
•        BLF/BLA
•        XML zaslon
•        Podržano: SMS, online oglašavanje, vremenska izvješća, imenik 

Network Features

• SIP 2.0(RFC3261) protocol, NAT transverse: STUN mode
• QoS: IEEE 802.1p/Q tagging (VLAN), Layer 3 TOS, and DSCP
• In-band DTMF and out-of band RFC2833 DTMF
• Proxy mode and peer-to-peer SIP link mode
• Standard encryption and authentication(MD5 and MD5-sess)

Phone Features

• Busy Lamp Field (BLF) and Shared Bridged Line Appearance (BLA)
• XML Screen, Downloadable phonebook (XML, LDAP, up to 200 items) and ring
• tones, XML customization of screen
• Call hold, call waiting, call forward, call transfer, DND
• Voicemail, speed Dial, Flash, Volume Adjustment, Rings Selection 

Voice Features

• Wideband voice codecs: G.722, voice spectrum
• between 50 and 7000Hz
• Narrowband voice codecs: G.711, G.729AB, G.726, G.723.1 or iLBC
• Supports VAD, CNG, AEC, NLP, AGC
• Full-duplex hands-free speakerphone compliant with IEEE 1329

Physical Features

• White backlit 320x160 pixels graphical LCD with 4-level grayscales
• Expansion module support
• PoE (Power over Ethernet) support
• 2 RJ45 ports, 1 headset jack