Basics

• Operating system: Linux
• 3-year warranty
• Wall mountable
• Part number/s: D865 | PN 00004536

Dimensions and Weight

• Dimensions (D x W x H, approx.)
•     - 45mm x 243mm x 210mm w/o footstand
•     - 165mm x 243mm x 193mm with footstand
• Weight (approx.)
•     - 1,12kg with footstand

Display and Indicators

• Display
•     - TFT liquid crystal display (LCD), tiltable, truecolour, backlit
•     - Display size (W x H) 110 mm x 62 mm
•     - 5" (127 mm) display size (diagonal)
•     - Resolution 1280 x 720 Pixel
• 15 LED indicators
•     - Call indication (1 x red LED)
•     - Message waiting indication (MWI) (1 x red LED message key)
•     - Function key indication (10 x multicolour LEDs)
•     - Audio key indication (1 x red LED, 2 x green LED)

Keypad and Function Keys

• 43 hard keys in total
• Standard ITU telephone keypad: 12 keys with star and pound/hash key
• 5-way navigation key
• 14 function keys
•     - 4 context-sensitive function keys
•     - 10 freely programmable line / function keys (maximum 28 on 4 sides) with multicolor LEDs
• 5 dedicated audio keys
•     - Mute key (1 x red LED), speakerphone key (1 x green LED), headset key (1 x green LED), volume control key
• 7 dedicated function keys
•     - Cancel key, message key, transfer key, hold key, redial key, directory, conference
• Keyboard lock

Directory support and call features

• 12 SIP identities / accounts
•     - Up to 12 simultaneous calls
• Directory support
•     - LDAP (server-based directory)
•     - Local directory with up to 10,000 entries
•     - Import/export phone book (CSV, XML)
•     - XML phonebook support
• Outgoing call features
•     - Speed dialling via function keys
•     - Speed dialling via keypad: 10 numbers
•     - URL dialling Local dial plan
•     - Redial (via dialed calls list)
•     - Automatic redial on busy
•     - Caller identification (CLIP)
•     - Calling Line Identification Restriction (CLIR)
•     - Call completion (busy/unreachable)
•     - Intercom
•     - Multicast paging
• Incoming call features
•     - Call waiting/swapping
•     - Call blocking (deny list)
•     - Dynamic central blacklist check
•     - Blocking of anonymous calls
•     - Auto answer
•     - Call forwarding
•     - Call deflection
•     - Do Not Disturb (DND) mode
• Active calls
•     - Mute microphone
•     - Hold
•     - Music on hold
•     - Blind call transfer
•     - Attended call transfer
•     - 4 + 1 local conferencing
•     - Call park / unpark
•     - Client Matter Code (CMC)
• Related features
•     - Call history lists of missed, received, dialed, rejected, and deflected calls
•     - Extension monitoring, call pickup

Audio devices, codecs, and features

• Casing speaker
•     - Wideband audio
•     - Hearing aid compatible (HAC)
•     - Frequency range 150 Hz - 8 kHz
•     - Noise cancellation
• Speakerphone mode
•     - Wideband audio
•     - Frequency range 100 Hz - 8 kHz
•     - Full duplex
•     - 2 x dedicated microphones
• Audio Codecs
•     - G.711 (A-law, μ-law), G.722, G.723.1, G.726, G.729, Opus
• Dual-tone multi-frequency signalling (DTMF)
•     - In-band, out-of-band, SIP-INFO
•     - Related features
•     - Comfort noise generator (CNG)
•     - Voice activity detection (VAD)
•     - Audio response time
•     - Adaptive jitter buffer
•     - Packet loss concealment (PLC)

Interfaces and Connections

• D865 Power Options
•     - Power over Ethernet (PoE), IEEE 802.3af, class 3
•     - Power adapter 100 - 240 V AC / 50 - 60 Hz | 5 V DC (SELV) / 2 A / 10 W 1
• Wired Interfaces
•     - 1 x coaxial power adapter connector
•     - 2 x 1 Gbit RJ45-8P8C Ethernet port
•     - 1 x USB 2.0 Typ A
•     - 1 x RJ9-4P4C standard receiver connector
•     - 1 x RJ9-4P4C standard connector or USB port for wired headset connection
•     - 1 x RJ12-6P6C proprietary EHS connector
•     - 1 x RJ12-6P6C proprietary EHS connector
• Wireless Interfaces
•     - Bluetooth 5.0
•     - WLAN  IEEE 802.11 n/ac
•     - DECT optional via Snom USB DECT Dongle
• Sensors
•     - Ambient light sensor
•     - Hook switch sensor

Technologies and Protocols

• Network Technologies
•     - OpenVPN, VLAN (IEEE 802.1Q)
• VoIP related protocols and techniques
•     - SIP (RFC 3261), SDP (RFC 3261), RTP (RFC 8866), RTCP (RFC 3550), RTCP-XR, SIP REFER method (RFC 3515), rport (RFC 3581), ENUM, ICE, STUN (RFC 5389)
• Secure VoIP protocols
•     - SIPS (SIP over TLS), SRTP (RFC 3711), SRTCP
• Network protocols
•     - IPv4 / IPv6 (Dual Stack), DHCP, NTP, LDAP, LLDP-MED, HTTP, TFTP, L2TP
• Secure network protocols - TLS V1.3 incl. ciphers (forward secret & authenticated), HTTPS, IEEE 802.1X (EAP-TLS - RFC 5216)
• Remote management protocols
•     - TR-069, TR-069 Annex G (formerly TR-111), TR-369 (USP)

Environmental Conditions

• Operating ambient temperature: 0 ° C bis 35 ° C
• Nonoperating temperature: - 10 ° C bis 45 ° C
• Humidity (non-condensing): 5% - 95%

Package Contents

• 1 x desk phone unit
• 1 x footstand
• 1 x corded receiver
• 1 x 1,5 m (5 ft) Ethernet cable
• 1 x Quick Installation Guide

Accessories

• 00004544 | Wall mount kit (D8XX)
• 00004561 | Corded wideband receiver (D8XX)
• 00004570 | 10 W Power adapter
• 00004341 | A100M | Monaural Headset
• 00004342 | A100D | Binaural Headset
• 00004388 | A150 | DECT-Headset
• 00004387 | A170 | DECT-Headset
• 00002362 | EHS Advanced 2.0
• 00004386 | A230 | USB DECT dongle