NEC ELECTRA ELITE IPK II, User Manual

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Electra Elite IPK II Document Revision 4C
IP Station (MEGACO) – IAD (Integrated Access Device) 2 - 533

The IAD(8)-U( ) ETU supports station to station direct RTP connections (peer-to-peer) for calls
between IP Phones that provide the following benefits:

Improved voice quality for calls between two IP Phones.

Improved bandwidth performance for voice between IP Phones.

The operating mode can be configured per IAD(8)-U( ) ETU on each port.

Pad and echo canceller controls are built-in and are programmable in the IAD(8)-U( ) ETU.

The LAN/WAN connection is provided by a 10 Base-T/100 Base-TX Ethernet.

In voice communication, particularly Internet telephony, the M ean O pinion S core (MOS) provides a
numerical measure of the quality of human speech at the circuit destination. The scheme uses
subjective tests (opinionated scores) that are mathematically averaged to obtain a quantitative
indicator of the system performance. The maximum MOS is 5.0.
Conditions

The Synchronous Ringing feature is not supported for IP Terminals. The ITH-16D-2/3 and
ITH-8D-2/3 Multiline Terminals have user programmable ringing options. Group listening is
not supported by (MEGACO) IP stations.

Station Relocation is not supported by (MEGACO) IP stations or IPK Soft Phones.

Not all data networks can support Voice over Internet Protocol (VoIP). A good VoIP
network solution requires low-latency, low jitter, and low packet loss. Accordingly, the
network must be evaluated for these factors to determine whether or not it can provide
toll-quality speech paths.

When 5-, 6-, or 7-digit station numbers are used, this feature is not available.

Night Mode is indicated as N on an IPK Soft Phone.

If call forwarding is set for an IP station, the system continues to follow the call forwarding,
even if the station loses power or LAN connection.

If both Call Forward Busy and Call Forward No Answer are set, the system follows the Call
Forward No Answer setting, even if the station loses power or LAN connection.

MEGACO station registration is solely dependant upon extension registration and not MAC
registration. Program 15-05-02 can only be viewed after an IP station has been registered
(read only).
Default Setting
None
System Availability