Memory, Storage and CPU capacity Page 27 of 544
Option 11C and 11C Mini Technical Reference Guide
Record the memory requirements on “Worksheet D: Unprotected memory
calculations” on page 141 and “Worksheet E: Protected memory
calculations” on page 142.
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
LAN requirement Value for 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