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DEFINITY ECS Release 8.2
Administrator’s Guide
555-233-506
Issue 1
April 2000
Screen reference
756ISDN trunk group
17
DCS Signaling
Specifies the means used to send the DCS message. This field only appears if the
Used for DCS field entry is
y and the Service Type field is anything except
dmi-mos or sddn. Valid entries are bx.25 for the traditional DCS feature or
d-chan for the DCS over ISDN-PRI D-channel feature.
DCS over D-channel is not supported on trunk groups containing ISDN-BRI
interfaces.
■ Hop Dgt — The Tandem Hop Limitation and QSIG Additional Network
Feature Transit Counter (ANF-TC) features provide a counter that reflects
the number of switches (that is, the number of hops) that a call has gone
through. The counter increments as a call leaves DEFINITY ECS using
tandem facilities. Valid values are
y and n. One or both of the features can
be applied to the trunk group depending on the following:
— If you enter
y and the Group Type field is tandem or the Group
Type field is
isdn and the Service Type field is tandem, the Tandem
Hop Limitation feature is applied to the trunk group.
— If you enter
y and you set the Group Type field to isdn, set the
Service Type field to
access, dmi-mos, public-ntwrk, tandem, tie,
or any of the craft-defined services allowed in the field. Set the
Supplementary Service Protocol field to
b or d, then the ANF-TC
feature is applied to calls on the trunk group.
NOTE:
The above conditions overlap. If the Group Type field is isdn,
the Service Type field is
tandem, and the Supplementary
Service Protocol field is
b or d, then both the Tandem Hop
Limitation and ANF-TC features are applied to calls on the
trunk group.
— If both features are applied to calls on the trunk group, ANF-TC
takes precedence. In situations where DEFINITY ECS is an
Incoming or Outgoing Gateway, either feature uses the hop count
and transit information provided by the other.
Maximum Size of UUI IE Contents
This field appears when the UUI Treatment field is shared. Enter the maximum
number of bytes of user information that the network supports.