Net2Phone Max 420, Max 430 manual Max 410/420/430 User’s Guide Chapter

Max 410/420/430 User’s Guide – Chapter 1

Exchange (PBX), Automatic Public Branch Exchange (APBX), or Key Phone System (KPS) systems. They are used to place outgoing calls over the Internet and to receive incoming calls from other devices.

FXO (Foreign EXchange Office) ports connect to the analog line card on a PBX, APBX, or KPS, or to an analog phone jack, to provide connectivity to the Max from phones both inside and outside of the PBX system.

In addition to the FXS functions, FXO ports provide limited Interactive Voice Response (IVR) functionality, which includes multiple options for caller greetings, passwords, and Internet call forwarding. This allows the Max 410 to assume many IVR functions when the PBX does not provide them.

A separate port with its own telephone line connection to the PBX, or to an analog telephone, is required for every concurrent telephone call (or conversation). For example, if capability for 3 concurrent calls is desired, then the Max must have at least 3 ports connected to the PBX or to analog telephones.

The Max 410, 420, and 430 feature several proprietary QoS (Quality of Service) enhancements, including:

G.168 echo cancellation Voice Activity Detection (VAD) Comfort Noise Generation (CNG) Dynamic jitter buffer control

More feature highlights include:

Improved Call Quality – The Max 410, 420, and 430 are compatible with more state-of-the- art gateways such as Nuera and Cisco (when available), which greatly improves the quality of calls with reduced latency.

Dropped Call Prevention – The Max 410, 420, and 430 are now more reliable in retaining calls in progress by re-establishing connections to call controllers if an IP stream is lost. This feature will greatly improve dropped call problems for ADSL or Cable modem users as well as LAN network users.

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