It is recommended to upgrade this Avaya Product soon.
This product uses IP lines and SIP services to transmit the voice through the internet connection to the other party (data over the signal connection). Teltek’s Nebulosity Cloud PBX and Stratus Cloud PBX are systems which provide this service. We also can adapt analog devices (like fax) to our VoIP system.
The Avaya J129 IP Phone combines essential call-handling features into an affordable and surprisingly robust SIP phone. It’s designed with a small footprint to sit easily on desks or in office spaces. It’s also ideal for use in location-based or walk-up contexts, such as lobbies, waiting areas, lunch rooms, and hallways, where it can be installed using a two-position stand or wall mount.Avaya J129 User Guide