Teledex E Series - Manual (Page 24)

24 www.teledex.com E SERIES VoIP USER GUIDE
3.5.10 MMI FILTER
The MMI filter is used limit access to the E Series
phone. When an MMI filter is enabled, only the
IP addresses within the start IP and end IP can
access that E Series phone.
3.5.11 DSP CONFIGURATION/AUDIO
SETTINGS
CODEC (First, Second, Third, and Fourth): Select
the preferred CODEC. Supports uLAW, aLAW,
G729, and G723 The CODEC (Coder/Decoder)
compression algorithms are negotiated with
the IP/PBX server, and negotiation attempts
will happen in the order seen here. The First
CODEC will have priority over the others listed in
descending order when attempting to negotiate
recognized compression algorithms with the
server.
Default Ring Type: This is the alerting “Ring” tone
presented to the user when the phone is ringing.
Handdown Time: Handset down detect time. The
amount of time before the handset goes on-hook.
Input Volume: Handset in volume (receiver).
Output Volume: Handset out volume (speaker).
Handfree Volume: The speaker phone volume.
Ring Volume: The volume of the alerting ring as
heard by the called party.
G729 Payload Length: G729 payload length.
G.729 is an audio data compression algorithm for
voice that compresses digital voice in packets of
10 milliseconds duration. It is officially described
as Coding of speech at 8 kbit/s. The payload is
the user data being transmitted, and the length
is measured in milliseconds.
Signal Standard: Signal standard for different
areas—this refers to the alerting ring tone that
the calling party hears (ringing in their ear) as
they call another party.
VAD: Enable/disable the VAD (Voice Activity
Detection) option—VAD can facilitate speech
processing, and can also be used to deactivate
some processes during non-speech section
of an audio session. It can avoid unnecessary
coding/transmission of silence packets in Voice
over Internet Protocol applications, saving on
computation and on network bandwidth.
3.6 Configuration Management
Save Configuration: Saves the current settings.
Backup Configuration: Backup the configuration
file by using the right key of mouse to click on
save target as. A save window appears. Type the
configuration file name in the File name area.
(The file type is a text file.)
Clear Configuration: Restores to the default
settings.