This desk phone makes hybrid work easy. Built for hot-desking or the home office, the Poly Edge E400 Series offer the perfect user experience. Two displays and 14-line keys give you more ways to connect, plus quality audio, in a seriously sharp package.

• Open application platform
• Certified for Teams Voice Gateway
• Poly Zero Touch Provisioning
• Target application: Knowledge workers at businesses of all sizes, hybrid offices, home offices
• 8 line keys supporting up to 32 SIP lines with pagination on Main Display
• 6 line keys (12) on Second Integrated Display
• Supports up to 1 Poly Edge E Expansion Module
• Flexible line appearance (one or more line keys can be assigned for each line extension)
• Main display 3.5” Color IPS LCD display, 2nd display 2.5” Color IPS LCD
• Bluetooth V 5.0
• Wi-Fi network connectivity: 2.4-2.4835 GHz (802.11b, 802.11g, 802.11n HT-20) 5.15-5.825 GHz (802.11a, 802.11n, HT-20, 802.11n HT-40)
• Dedicated RJ9 Headset Port
• Compatible with commercially available TTY adapter equipment
• Compliant with ADA Section 508 Subpart B 1194.23 (all)
• Hearing aid compatibility to ITU-TP.370 and TIA 504A standards
• Hearing aid compatible (HAC) handset for magnetic coupling to hearing aids
• TIA-920 wideband audio, type 1 compliant (IEEE 1329 full duplex)
• USB Type-C headset support
• Electronic hook switch capable
• 2 RJ-45 (10/100/1000BASE-TX Mbps)
• NFC Wireless technology (Connected Tag)
• Adjustable desk stand (2 positions)
• Optional Wall Mount Kit available
• Poly HD Voice
• Poly Acoustic Clarity technology provides full duplex conversations, acoustic echo cancellation, and background noise suppression
• Poly Acoustic Fence technology eliminates background noise when using a handset or wired headset
• Poly NoiseBlockAI technology removes most background noise when using the speakerphone
• Audio Codecs: G.711 (A-law and μ-law), G.722, G.729AB, iLBC,OPUS, G.722.1
• ENERGY STAR certified
• Built-in auto-sensing IEEE 802.3af Power over Ethernet (Class 3)
• Surround lighting bar status indictor (color)
• Unicode UTF-8 character support
• 802.1X Authentication and EAPOL Media encryption via SRTP
• HTTPS secure provisioning
• SRTP media encryption using AES 256 bits
• Manual or dynamic host configuration protocol (DHCP) network setup
• QoS Support — IEEE 802.1p/Q tagging (VLAN), Layer 3 TOS, and DHCP
• Supports Polycom Apps SDK and API for third- party business and personal application
• Supported network protocols: DHCP VLAN discovery, LLDP-MED for VLAN discovery,
  FTP/TFTP/HTTP/HTTPS server-based central provisioning
• Poly Device Management Service for Service Providers (PDMS-SP) Cloud Management
• 01/2026 Microban removed from device: products are still designed to be easily wipeable and cleaned
• Replaced VVX 450 IP Phone
• In the box: Phone, Handset, Handset Cord, Desk Stand, Network (LAN) cable-CAT-5E, Setup sheet
• 1 year manufacture warranty