IP1211     IP1211 IP Phone

 Cost-Effective IP Phone for Effective Communication


IP1211     IP1211 IP Phone

 Cost-Effective IP Phone for Effective Communication



Karel IP121 is an IP phone offering advanced functionality and easy user interface for making interaction easier and maximizing efficiency. Operating with Karel IP PBXs and other SIP compliant products, KAREL IP121 IP Phone provides uninterrupted communication in anywhere with Internet connection with its aesthetic design, fullduplex hands free feature and its other differentiating features:

  • 132x64 pixel graphic LCD
  • 1 VoIP account
  • 2xLAN, PoE option
  • FullDuplex Speaker
  • Wall mountable
  • Earphone support
  • XML/LDAP Remote Phone book



Voice Specifications

  • Full-Duplex Hands free Speaker with AEC
  • Codec: G.711μ / A, G.723.1, G.726, G.729ab
  • DTMF: In-Band, Out of band (RFC2833), SIP Info

Screen and Display

  • 2.8" 132x64 pixel 4-level black-white graphic display
  • Call and pending message LED flash
  • Iconic user interface with flexible button
  • National language selection
  • Caller and number identification (CID)

Phone Features

  • 1 VoIP account
  • Call hold, Mute, Do not disturb
  • Fast Dialing with single button, Direct line
  • Redial, Return a call, Auto Answer
  • Call transfer, Call forwarding, Holding call
  • Group listening, SMS
  • 3-Way Conference
  • Direct IP call without SIP proxy
  • Ring tone selection/installation/delete
  • Manual and automatic adjustment of date and time
  • Call plan, XML scanner, Action URL

Phone book

  • Phone book (1000 entry)
  • Black List
  • XML/LDAP Remote Phone book
  • Smart Search Method
  • Phone book Searching/Installation/Uploading
  • Call history: Outgoing / Incoming / No Answer / Forwarded Calls 

IP PBX Integration

  • Unknown call, Reject unknown call
  • Hotdesking, Emergency Call
  • Pending message display (MWI)
  • Voice Message, Call parking, Call hunting
  • Interkom, Paging, Music on Hold
  • Call ending

Network and Security

  • SIP v1 (RFC2543), v2 (RFC3261)
  • Call server redundancy support
  • NAT Translation: STUN Mode
  • Proxy and point-to-point SIP connection
  • IP Assigning: Static / DHCP
  • HTTP / HTTPS web server
  • Synchronizing date and time by SNTP
  • QoS: 802.1p/Q tagging (VLAN), Layer 3 ToS, DSCP
  • SRTP for voice
  • Transport Layer Security (TLS)
  • HTTPS certificate management
  • Secure Configuration Folder with AES Passwording
  • MD5/MD5- Identity verification by voice
  • IEEE802.1X
  • IPv6 


  • Configuration: Web Interface / Phone / Automatic Update
  • Automatic Update over FTP / TFTP / HTTP / HTTPS
  • Automatic Update with PnP
  • Zero-sp-touch
  • Phone Lock for Personal Security Protection
  • Restore factory settings, restart
  • Uploading Trace packages and system log

Physical Specifications

  • 2xRJ45 10/100/1000Mbps Ethernet Port
  • 6 feature keys: message, earphone, redial, transfer, mute, hands-free
  • 5 navigation keys
  • Volume control keys
  • 1xRJ9 (4P4C) Headset Port
  • 1xRJ9 (4P4C) Earphone Port
  • Wall mountable
  • Power Adaptor: AC 100 ~ 240 V Input and DC 5 V/2A Output
  • Optional PoE
  • Power Consumption: IP121: 1.2~1.9W IP121 PoE: 1.8~2.3W
  • Net weight: IP121:780g, IP121 PoE: 782.5 g
  • Dimensions: 185mmx188mmx 143mm x 38mm

Package Specifications

  • Amount / CTN: 10 unit
  • N.W / CTN: 9.8 KG
  • G.W / CTN: 10.8 KG
  • Measurement: 0.057CBM
  • Box dimensions: 215mm x 200mm x 121mm
  • Carton Measurement: 630mm x 436mm x 210mm


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