Memory,Storage and CPU capacity Page27 of 544
Option11C and 11C Mini TechnicalReference Guide
Record the memory requirements on “Worksheet D: Unprotected memory
calculations” on page141 and “Worksheet E: Protected memory
calculations” on page142.
Network Delay
There is some impact on real-time performance (estimated to be 20%) when
digital trunks are installed in IP Expansion cabinets. However, there is still
sufficient real-time to support five fully configured Option 11C cabinets in a
typical business configuration.
Table 8
Basic LAN Requirements for Excellent Voice Quality
LANrequirement Valuefor Excellent Voice Quality
Packet loss rate <0.5%
PDV jitter buffer (maximum) RTD<5 ms
Round trip Delay <5 ms
PDV jitter buffer (minimum) RTD <12 ms
100BaseT/F Layer 2/Layer 3 switch Full Duplex connection