NEC ELECTRA ELITE IPK II, Features And Specifications Manual

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Electra Elite IPK II Document Revision 1
IP Station (MEGACO) - IAD (Integrated Access Device) 2 - 467
J
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.
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 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 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.
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