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.
Brand:Avaya
Type:Desk Phones
Status:Manufacture Discontinued (end-of-life)
The Avaya 9640 IP Telephone is optimal for users who move quickly from one call to another. The device provides advanced communications features, including wideband audio and a dazzling high-resolution, color display.
Avaya 9640 User Guide