VOICE OVER IP INTERFACE
Installation and Operation Manual
26
Call Progress Details: Field Definitions (cont’d)
From – To Details
Description
Gateway
Name
alphanumeric
string
Identifier for the VOIP gateway
that handled this call.
IP Address
x.x.x.x, where
x has a range
of 0 to 255
IP address from which the call
was received.
Options
SC, FEC
Displays VOIP transmission
options in use on the current call.
These may include Forward Error
Correction or Silence
Compression.
Silence
Compression
SC
“SC” stands for Silence
Compression. With Silence
Compression enabled, the VOIP-
1-2-4-8 will not transmit voice
packets when silence is detected,
thereby reducing the amount of
network bandwidth that is being
used by the voice channel.
Forward Error
Correction
FEC
“FEC” stands for Forward Error
Correction.
Forward Error
Correction
enables some of the
voice packets that were corrupted
or lost to be recovered. FEC adds
an additional 50% overhead to the
total network bandwidth
consumed by the voice channel.
Default = Off
