NEC Electra Elite IPK II Features And Specifications Manual page 489

Electra Elite IPK II
In voice communication, particularly Internet telephony, the Mean Opinion Score (MOS) provides a
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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
r 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.
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Not all data networks are suitable to support Voice over Internet Protocol (VoIP). A good
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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.
r 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.
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Default Setting
None
System Availability
Terminals
ITH-16D-2/3 Multiline Terminal
- OR -
ITH-8D-2/3 Multiline Terminal
- OR -
Any IPK Multiline Terminal with IP-R (IPK) Unit installed.
- OR -
IPK Soft Phone
IP Station (MEGACO) - IAD (Integrated Access Device)
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