Yealink SIP-T27G Enterprise HD IP Phone (Power adapter optional)

HD voice: HD handset, HD speaker * Codecs: G.722, G.711(A/+CHAR(181)+), G.723, G.729AB, G.726, iLBC * DTMF: In-band, Out-of-band(RFC 2833) and SIP INFO * Full-duplex hands-free speakerphone with AEC * VAD, CNG, AEC, PLC, AJB, AGC * 6 VoIP accounts * Call hold, mute, DND * One-touch speed dial, hotline * Call forward, call waiting, call transfer * Group listening, SMS, emergency call * Redial, call return, auto answer * 3-way conferencing * Direct IP call without SIP proxy * Ring tone selection/import/delete * Set date time manually or automatically * Dial plan * XML Browser * Action URL/URI * Integrated Screenshots * RTCP-XR Directory * Loal phonebook up to 1000 entries * Black list * XML/LDAP remote phonebook * Intelligent search method * Phonebook search/import/export * Call history: dialed/received/missed/forwarded IP-PBX Features * Busy Lamp Field (BLF) * Bridged Line Apperance(BLA) * Anonymous call, anonymous call rejection * Hot-desking * Message Waiting Indicator (MWI) * Voice m