SIP-T22

SKU: SIP-T22
Cortelco Yealink Professional IP Phone
Price: $90.00
SIP-T22
SIP-T22
Product Details

Phone Features

  • 3 VoIP accounts, Hotline, Emergency call
  • Call hold, Call waiting, Call forward, Call return
  • Call transfer (blind/semi-attended/attended)
  • Caller ID display, Redial, Mute, DND
  • Auto-answer, 3-way conferencing
  • Speed dial, SMS, Voicemail
  • Message Waiting Indication (MWI) LED
  • Tone scheme, Volume control
  • Direct IP call without SIP proxy
  • Ring tone selection/import/delete
  • Phonebook (300 entries), Black list
  • Call history: dialed/received/missed/forwarded
  • Menu-driven user interface
  • Localized language and input method
  • Soft keys programmable

Advanced Features

  • XML phonebook search/import
  • LDAP phonebook
  • XML Browser

IP PBX System Integration

  • Busy lamp field (BLF), BLF list
  • Bridged line appearance (BLA)
  • DND & Forward synchronization
  • Intercom, Paging, Music on hold
  • Call park, Call pickup
  • Call recording, Call completion
  • Group listening, Group pickup
  • Anonymous call, Anonymous call rejection
  • Network conference
  • Distinctive ringtone
    Dial Plan, Dial-now

Codecs and Voice Features

  • Wideband codec: G.722
  • Narrowband codec: G.711µ/A, G.723.1
  • G.726, G.729AB
  • VAD, CNG, AEC, PLC, AJB, AGC
  • Full-duplex speakerphone with AEC

Network Features

  • SIP v1 (RFC2543), v2 (RFC3261)
  • DNS SRV (RFC3263)
  • Redundant server support
  • NAT Traversal: STUN mode
  • DTMF: In-Band, RFC2833, SIP Info
  • Proxy mode and peer-to-peer SIP link mode
  • IP Assignment: Static/DHCP/PPPoE
  • Bridge/router mode for PC port
  • TFTP/DHCP/PPPoE client
  • Telnet/HTTP/HTTPS server
  • DNS client, NAT/DHCP server
  • Logout

Management

  • Auto-provision via FTP/TFTP/HTTP/HTTPS
  • Auto-provision with PnP
  • SNMP V1/2 optional, TR069 optional
  • Configuration: browser/phone/auto-provision
  • Factory configuration customized
  • Trace package and system log export

Security

  • 802.1x, VLAN QoS (802.1pq)
  • Transport Layer Security (TLS)
  • HTTPS (server/client), SRTP (RFC3711)
  • Digest authentication using MD5/MD5-sess
  • Secure configuration file via AES encryption
  • Phone lock for personal privacy protection
  • Admin/VAR/User 3-level configuration mode