Instruction manual

Flexible Trunk to Trunk Connections Page 1541 of 3156
Features and Services
• When CLS = FTTR, Flexible Trunk to Trunk Connections Restricted
(FTTR), trunk to trunk connections are denied for both Conference and
Transfer.
• When CLS = FTTC, Flexible Trunk to Trunk Connections Conditional,
trunk to trunk connections are allowed for Supervised Conference. Trunk
to trunk connections are denied for Transfer and unsupervised
Conference. Flexible Trunk to Trunk Connections Conditional (FTTC)
is the default for new sets.
When Flexible Trunk to Trunk Connections is used without Trunk Barring
configured, the following Flexible Trunk to Trunk Connections Options are
available at a Customer level:
• When FTOP = FRES, Flexible Trunk to Trunk Connections Restricted,
the Flexible Trunk to Trunk Connections feature does not function. The
customer can still configure the set’s Class of Service; however, the
Class of Service does not take effect. Flexible Trunk to Trunk
Connections Restricted (FRES) is the default value.
• When FTOP = FTLY, Flexible Trunk to Trunk Connections Only, trunk
to trunk connections are controlled exclusively by the Flexible Trunk to
Trunk Connections feature, based upon the set’s Class of Service.
Figure 42 illustrates the functionality of Flexible Trunk to Trunk Connections
without Trunk Barring configured.
In Figure 42, Set B is established with Trunk Route A and initiates a transfer
or a conference with Trunk Route C.
Flexible Trunk to Trunk Connections Options (FTOP) = Flexible
Trunk to Trunk Connections Only (FTLY)
Referring to Figure 42, when Flexible Trunk to Trunk Connections Options
is set to Flexible Trunk to Trunk Connections Only (FTLY) and the Class of
Service of Set B is set to Flexible Trunk to Trunk Connections Unrestricted
(FTTU), the following is true:
• Telephone B can complete the Call Transfer between Trunk Routes A
and C, as long as no other restrictions apply.
• Telephone B can conference Trunk Routes A and C and then disconnect.
In this case, Trunk Routes A and C remain connected, as long as no other
restrictions apply.