NEC Electra Elite IPK II System User Manual page 564

Document Revision 4C
Registration Override is a feature for overriding the registration of an IP phone from various locations.
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You have to know the IP address of the IP phone and the extension number of the phone you want to
Override.
In voice communication, particularly Internet telephony, the Mean Opinion Score (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.
This interface supports via KSU configuration:
MEGACO (H.248) signaling Protocol

DTMF generation
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RTP port number designation
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TOS field QoS support
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Tone generation
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General Tone detection
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G.711 and G.729a voice compression
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10 Base-T/100 Base-T LAN interface
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Echo Canceller

Registration Override
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Conditions
Group listening is not supported by (MEGACO) IP stations.
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Station Relocation is not supported by (MEGACO) IP stations or IPK Soft Phones.
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Not all data networks are suitable to 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 6- or 7-digit station numbers are used, this feature is not available.

Night Mode is indicated as N on an IPK Soft Phone.
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Soft Phone is not supported when using Registration Override.

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.
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Electra Elite IPK II
IP Station (MEGACO) – MG 16