The Avaya J129 is an entry-level IP phone that provides secure, reliable, and basic voice communications. The J129 supports SIP telephony capabilities, enabling enterprises to replace older analog or digital phones with today’s technology. The J129 is a one-line phone that can support two concurrent calls. The J129 contains three context-sensitive soft keys for everyday functions such as transfer, conference and forwarding. The full-duplex speakerphone enables for hands-free conversations allowing you to multitask. The J129 contains a dual 10/100 Ethernet port that eliminates cabling and enables the phone to operate during a power outage.