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DEFINITY ECS Release 8.2
Administrator’s Guide
555-233-506
Issue 1
April 2000
Screen reference
770ISDN trunk group
17
H0
Enter
y to specify the ISDN information transfer rate for 384-kbps of data, which
is comprised of six B-channels. When a trunk group is administered to support
H0, the trunk/hunt algorithm to satisfy a call requiring 384-kbps of bandwidth
uses a fixed allocation scheme.
H11
Enter
y to specify the ISDN information transfer rate for 1536-kbps of data, which
is comprised of 24 B-channels. When a trunk group is administered to support
H11, the trunk/hunt algorithm to satisfy a call requiring 1536-kbps bandwidth
uses a fixed allocation scheme.
H12
Enter
y to specify the ISDN information transfer rate for 1920-kbps of data, which
is comprised of 30 B-channels. When a trunk group is administered to support
H12, the trunk/hunt algorithm to satisfy a call requiring 1920-kbps bandwidth
uses a fixed allocation scheme.
NxDS0
Enter
y to specify the “N by DS-zero” multi-rate service.
Contiguous
Specifies whether or not to hunt contiguous NXDS0 channels. This field only
appears if the NxDS0 field is
y.
The trunk/hunt algorithm to satisfy an NXDS0 call is as follows:
—Enter
y to specify the “floating” scheme. NXDS0 calls are placed on
a contiguous group of B-channels large enough to satisfy the
requested bandwidth without constraint on the starting channel (no
fixed starting point trunk).
NOTE:
H0 and NXDS0 “floating” scheme cannot both be y.
—Enter
n to specify the “flexible” scheme. NXDS0 calls are placed on
any set of B-channels on the same facility as long as the requested
bandwidth is satisfied. There are no constraints such as contiguity of
B-channels or fixed starting points.