Karel IP216G is enterprise-level screen Gigabit IP phone can work with Karel IP PBX solutions and other SIP compatible PBXs. Karel IP216G IP Phone provides high quality and uninterrupted communication anywhere with internet access, with its aesthetic design, HD sound quality, especially illuminated color graphic display and other distinctive features.

• 20 VoIP lines
• 4.3” (480x272) main color display
• HD voice
• 2x Gigabit LAN ports
• Integrated POE
• Wi-Fi connection with Wi-Fi dongle
• Handsfree / Handset mode

General Features

• 20 SIP lines
• Support receiving video call
• HD voice
• PoE enabled
• 4.3-inch (480x272) color screen
• Handset / hands-free / headset mode
• Intelligent DSS keys
• Support Expansion Module (need upgrade to the version of 2.3.0 or higher)
• Desktop stand / wall-mounted (need an additional wall hanging parts)
• Optional external power supply

Phone Functions

• Local phonebook (2000 entries)
• Remote phonebook (XML/LDAP, 2000 entries)
• Call logs (in/out/missed, 1000 entries)
• Black/white list call filter
• Screen saver
• Voice message waiting indication (VMWI)
• Programmable DSS/soft keys
• Network time synchronization
• Support BT dongle or Wi-Fi dongle
• Support recording (through flash drive or server)
• Support Expansion Module
• Action URL / Active URI
• uaCSTA

Call Functions

• Call out / answer / reject
• Mute / unmute (microphone)
• Call hold / call resume
• Call waiting
• Intercom
• Caller ID display
• Speed dial
• Anonymous call (Hide caller ID)
• Call forward (Always/Busy/No Answer)
• Call transfer (Attended/Unattended)
• Call parking/pick-up (depending on server)
• Redial
• Do-Not-Disturb
• Auto-answering
• Voice Message (With server)
• 6-way conference
• Hot line
• Hot desking

Video

• Hardware video decoding: H.264
• Video call resolution: QVGA / CIF / VGA / 4CIF / 720P / 1080P

Audio

• HD voice microphone/speaker (handset/hands-free, 0 ~ 7KHz frequency response)
• HAC handset
• Wideband ADC/DAC 16KHz sampling
• Narrowband codec: G.711a/u, G.723.1, G.726, G.729A/B, iLBC
• Wideband codec: G.722, Opus
• Full-duplex hands-free speaker phone with AEC
• Voice Activity Detection (VAD) / Comfort Noise Generation (CNG) / Background Noise Estimation (BNE) / Noise Reduction (NR) / Automatic Gain Control (AGC)
• Packet Loss Concealment (PLC)
• Dynamic Adaptive Jitter Buffer
• DTMF: In-band, Out-of-Band (RFC2833/ SIP INFO)
• VQM voice quality monitoring

Network

• Physical: 10/100/1000 Mbps Ethernet, dual bridged port for PC bypass
• IP Mode: IPv4/IPv6/IPv4&IPv6
• IP Configuration: Static IP / DHCP / PPPoE
• Network Access Control: 802.1x
• VPN: L2TP / OpenVPN
• VLAN
• LLDP
• QoS
• RTCP-XR (RFC3611), VQ-RTCPXR (RFC6035)

Protocols

• SIP2.0 over UDP / TCP / TLS
• RTP / RTCP / SRTP
• STUN
• DHCP
• IPv6
• LLDP
• PPPoE
• 802.1x
• L2TP
• OpenVPN
• SNTP
• FTP / TFTP
• HTTP / HTTPS
• TR069
• AES128 & AES256

Deployment& Management

• Auto-provisioning via FTP / TFTP / HTTP / HTTPS / DHCP OPT66 / SIP PNP / TR069
• Web management portal
• Web-based packet dump
• Configuration export / import
• Phonebook import/export
• Firmware upgrade
• Syslog