Page 338 of 910 Installation and initial configuration of an IP Telephony node
553-3001-365 Standard 4.00 August 2005

Configure VoIP bandwidth management zones (LD 117)

Up to 256 zones can be defined in LD 117. The Call Server uses the zones for
VoIP bandwidth management. For more information, see Converging the
Data Network with VoIP (553-3001-160).
The term Intrazone means within the same zone. Interzone means between
two different zones.
Table 64 on page 339 lists the zone parameters as follows:
• p1 – total bandwidth (Kbps) available for Intrazone calls
• p2 – defines the codec for Intrazone calls (that is, preserve voice quality
or preserve bandwidth). BQ provides the best voice quality but uses the
most bandwidth. BB uses the least amount of bandwidth but reduces
voice quality.
• p3 – total bandwidth available for Interzone calls
• p4 – preferred strategy for the choice of the codec for Interzone calls
• p5 – zone resource type. The type is either shared or private.
LD 117 also includes the DIS and ENL commands to disable or enable a
zone. When a zone is created, its default state is enabled.
CAUTION
Zone 0 must be configured in LD 117 first before other
zones are configured or all calls associated with zone 0
are blocked.