The SIP-T27P is a highly featured sip phone designed to deliver superb sound quality and uses standard encryption protocols to deliver secure remote provisioning.

Offering a rich user experience and boasting a wide range of functionality, including SCA, BLF, 3-way conference and paperless labels, this Optima HD SIP phone is headset compatible and can be expanded using the EXP39B module.

udio Features:

HD voice: HD handset, HD speaker, Wideband codec: G.722, Narrowband codec: G.711(A/μ), G.723.1, G.729AB, G.726, GSM, 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

Phone Features:

6 VoIP accounts, One-touch speed dial, redial, Call forward, call waiting, Call transfer, call hold, Call return, group listening, Mute, auto answer, DND, 3-way conference call, Direct IP call without SIP proxy, Ring tone selection/import/delete, Hotline, emergency call, Set date time manually or automatically, Dial plan, XML Browser, Action URL/URI
Directory:Local 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 mail, Call park, call pickup, Intercom, paging, Music on hold, Call recording 

Display and Indicator:

3.66” 240x120-pixel graphical LCD with backlight, LED for call and message waiting indication, Dual-colour (red or green) illuminated LEDs for line status information, Intuitive user interface with icons and soft keys, National language selection, Caller ID with name, number

Feature Keys:

8 line keys with LED, 8 line keys can be programmed up to 21 various features (3-page view), 5 features keys: message, headset, mute, redial, hands-free speakerphone, 4 context-sensitive “soft” keys, 6 navigation keys, 2 volume control keys, Illuminated mute key, Illuminated headset key, Illuminated hands-free speakerphone key

Interface:

1xRJ9 (4P4C) handset port, 1xRJ9 (4P4C) headset port, 1XRJ12 (6P6C) EHS port, Power over Ethernet (IEEE 802.3af ), Class 2

Other Physical Features:

Stand with 2 adjustable angles, Wall mountable (optional), External universal AC adapter (optional), AC 100~240V input and DC 5V/1.2A output, Power consumption (PSU): 1.17~3.32W, Power consumption (PoE): 1.60~5.94W, Dimension(W*D*H*T): 265mm x 210mm x 170.5mm x 53.5mm, Operating humidity: 10-95%, Operating temperature: -10~50°C 

Management:

Configuration: browser/phone/autoprovision, Auto provision via FTP/TFTP/HTTP/HTTPS for mass deploy, Auto-provision with PnP, Zero-sp-touch, Reset to factory, reboot, Package tracing export, system log

Network and Security:

SIP v1 (RFC2543), v2 (RFC3261), NAT traverse: STUN mode, Proxy mode and peer-to-peer SIP link mode, IP assignment: static/DHCPHTTP/HTTPS web server, Time and date synchronization using SNTP, UDP/TCP/DNS-SRV(RFC 3263), QoS: 802.1p/Q tagging (VLAN), Layer 3, ToS DSCP SRTP for voice, Transport Layer Security (TLS), HTTPS certificate manager, AES encryption for configuration file, Digest authentication using MD5/MD5-sess, penVPN, IEEE802.1X, IPv6