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Avaya J139 is an entry-level IP phone for business workers who only require everyday functionality. This model of J139 features third-party call control (3PCC) using the open SIP protocol, so it can be used with a broad range of standards-based SIP phone systems. It cannot be used with Avaya Aura or Avaya IP Office.
Avaya J139 is built for business. It's a multiple line phone with a full color display, four dual-color LED buttons, and four soft keys for simple operation. Get rich wideband audio from the handset and full-duplex speakerphone. The phone features a built-in amplifier for hearing impaired workers. Connect a headset using the dedicated RJ9 port, which supports EHS. It offers enterprise-class security with TLS and SRTP encryption, Gigabit Ethernet speed, and PoE power.