Instruction manual

Page 1152 of 3156 Collect Call Blocking
553-3001-306 Standard 10.00 January 2002
If a CCB user answers a call from a CO/DID route with Collect Call Blocking
activated, the CCB answer signal is sent to the CO for all incoming DID and
CO calls. For analog trunks, the user will experience clicking on the line and
a temporary break is speechpath (0.5 to 2.5 seconds) while the CCB answer
signal is being sent.
If the XFCOT and EXUT cards do not have flexible firmware timing, the
CCB flash portion of the CCB answer signal will be ignored by firmware, and
the regular answer signal will be returned to the CO. However, software
controlled signaling can be done with EXUT cards.
In a standalone environment, all input from a set (except from the Release
key) is ignored while the Collect Call Blocking answer signal is being sent.
Collect Call Blocking is applied to attendants on a customer basis only; it
cannot be applied on a tenant basis.
The answer signal returned for a call from a route with CCB enabled and that
is Network Attendant Service (NAS) routed is determined by the customer
option on the source node. Thus, NAS routing can be configured across any
Meridian Customer Defined Network environment, but the source node
determines the answer supervision sent to the CO.
Call Detail Recording (CDR) record timing begins on the first answer of the
CCB answer sequence. For this reason, CDR records will be generated for
incoming calls to CCB users across routes on which CCB is enabled. If the
call is collect, and is dropped, a CDR record of approximately CCB1 + CCB2
length will be generated.
For data calls, all calls will be answered with the CCB answer signal, if CCB
is enabled. This may have an effect on data protocols, while CCB signaling
is taking place.
If firmware timing is used (FWTM = YES in Overlay14) for sending the CCB
flash, the CCB2 timer is downloaded to the card before sending the firmware
flash. If the CCB2 timer is changed in the Route Data Block, either the card
has to be enabled or the switch has to be initialized to get the new CCB2 timer
downloaded to the card.