[shortdesc] VoIP phone, SIP [/shortdesc] [properties] Product Name Avaya J129 IP Phone (700513638) Product Description SIP-based communication device offering essential voice communication with superior audio quality, productivity-enhancing features, and advanced security capabilities Brand Avaya Type VoIP Phone Protocol SIP Compatibility Compatible with Avaya Aura and IP Office platforms Power Supports PoE 802.3af; optional 5V DC power adapter Display 2.3-inch monochrome display, 128 x 32 pixels Call Appearances Supports 2 concurrent calls Soft Keys 3 context-sensitive soft keys Ethernet Ports Dual 10/100 Ethernet ports for network and co-located PC connectivity [/properties] [specifications] Audio Full-duplex speakerphone; handset with wideband audio Fixed Feature Buttons Mute, Volume, Speaker, Hold, Transfer, Conference, Redial, Message Configuration Web-based user interface for configuration Dimensions (H x W x D) 6.7 x 6.1 x 2.8 inches (170 x 155 x 71 mm) Weight 1.5 lbs (0.68 kg) Operating Temperature Range 32°F to 104°F (0°C to 40°C) Storage Temperature Range -4°F to 140°F (-20°C to 60°C) Humidity 10% to 95% non-condensing [/specifications] The Avaya J129 IP Phone is a SIP business phone designed for essential voice communication in office, reception, shared workspace, and common-area deployments, offering practical call handling, strong audio quality, and simple web-based configuration.