Instruction manual

Collect Call Blocking Page 1151 of 3156
Features and Services
Figure 35
Collect Call Blocking answer signal compared to regular answer signal
Operating parameters
The Collect Call Blocking feature supports both analog and DTI2 trunks, and
the following Intelligent Peripheral Equipment (IPE) cards:
• the NTCK16BB Extended Flexible COT Trunk Card (XFCOT) with
firmware flash timing
• the NT8D14BA Enhanced Extended Universal Trunk Card (EXUT)
containing the Centrex Switchhook Flash function in the firmware, and
• the NT8K14AK Extended Universal Trunk Card (XUT) which may be
used if the Centrex Switchhook Flash is configured with software timing.
The Collect Call Blocking answer signal can only be sent in cases where
answer supervision is provided by the Meridian 1.
Once the modified answer signal is sent to the CO, the Meridian 1 has no
control over how the call will be handled by the CO.
On-hook
Off-hook
On-hook
Off-hook
CCB1 delay
CCB2 delay
Collect Call Blocking Answer Signal
Regular Answer Signal