At-a-Glance Reference Table to TDM Span Telco Settings
197
At-a-Glance Reference Table to TDM Span
Telco Settings
(
Not applicable to VoIP
) The table below provides an at-a-glance reference
to the available TDM telco settings in the
Span Configuration
dialog
box, the TDM Span types to which they apply, their purposes, and the
possible results if set incorrectly.
Call
Established
Timeout
Telephony
Analog,
T1 loop start and
ground start
Specifies the time after the
last digit is dialed before a
call is marked as
established.
Should be set to match the
CO timeout. Affects Policy
enforcement and call
monitoring.
Caller ID
Channel
Map
T1 CAS,
Analog
Indicates whether Caller ID
is available on the channel
for determining source
number on inbound calls.
This check box must be
selected or Caller ID will not
be used, even if it is
available.
Enabled
Channel
Map
All except SS7
and AAA
Indicates whether the Span
monitors a particular
channel.
Call data is recorded and
Policies are enforced only on
channels selected in this
column.
Extension
Channel
Map
All except SS7
and AAA
Maps each channel to a
default extension, which is
only used if source on
outbound calls is
unavailable from any other
means. SMDR and call data
always take precedence
over the extension map.
Without values in the
extension map, call audit data
may be incomplete and the
Span may be unable to
determine whether the call
matches Policy Rules.
