User guide

Technician’s Handbook
184
Ext Mov - N/A
Call rings the Single Extension
Cyclic Ring Timer Expires; Call moves to first
element of Moving Group
Cyclic Ring Timer Expires; Call moves to Next
element in the Group. This continues till the
last element in the Group is rung.
Cyclic Ring Timer Expires; Call Rings All
members of the Group.
Cyclic ring Timer Expires; Call moves to
attendant (backstop).
Ext Ext - N/A
Call Rings First Extension
Cyclic Ring Timer Expires; Call moves to
Second Extension
Cyclic Ring Timer Expires; Call moves to
attendant (backstop).
Ext Stan Ext N/A
Call Rings First Extension
Cyclic Ring Timer Expires; Call moves to Ring
All members of Standard Group.
Cyclic Ring Timer Expires; Call moves to
Second Extension
Cyclic Ring Timer Expires; Call moves to
attendant (backstop).
Stan Ext Stan N/A
Call Rings All elements in first group
Cyclic Ring Timer Expires; Call moves to
Single Extension
Cyclic Ring Timer Expires; Call moves to ring
All members of Second Group
Cyclic Ring Timer Expires; Call moves to
attendant (backstop).
Stan Stan Stan N/A
Call Rings All elements of First Group
Cyclic Ring Timer Expires; Call moves to All
members of Second Group
Cyclic Ring Timer Expires; Call moves to All
members of Third Group
Cyclic Ring Timer Expires; Call goes to
attendant (backstop).
Table 18: Cyclic ring map operation (continued)
Cyclic ring map operation for
DID (NA) and non-DDI only lines (UK)
Entry 1 Entry 2 Entry 3 Overflow Call progression
3100 Hand.bk Page 184 Monday, August 19, 2002 8:49 PM