Instruction manual

Flexible Trunk to Trunk Connections Page 1543 of 3156
Features and Services
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 Conditional
(FTTC), the following is true:
• Telephone B cannot complete the Call Transfer from Trunk Route A to
Trunk Route C.
• Telephone B can complete the Supervised Conference with Trunk
Routes A and C, as long as no other restrictions apply. If Set B drops out
of this conference, Trunk Routes A and C are disconnected.
Table 50 is a matrix that summarizes the possible selections for Station Class
of Service and Flexible Trunk to Trunk Connections Options available for
Flexible Trunk to Trunk Connections without Trunk Barring configured.
Table 50
CLS and FTOP Matrix for Flexible Trunk to Trunk Connections
without Trunk Barring configured
Station Classes of Service
(LDs 10 and 11)
Customer Level Options (LD 15)
FTOP = FRES (Default) FTOP = FTLY
CLS = FTTU (Default for
existing sets)
No effect on Class of Service.
Existing restrictions still apply.
Allows trunk to trunk
connections for both Transfer
and Conference.
CLS = FTTR No effect on Class of Service.
Existing restrictions still apply.
Blocks all trunk to trunk
connections for Transfer and
Conference.
CLS = FTTC (Default for new
sets)
No effect on Class of Service.
Existing restrictions still apply.
Allows trunk to trunk
connections for Supervised
Conference only. Denies
trunk to trunk connections for
Transfer and unsupervised
Conference.