Installation guide

QuadroCS Manual II: Administrator's Guide Administrator's Menus
QuadroCS (SW Version 3.1.x) 28
The Conference Codecs page displays a list of Quadro
Active Codecs.
The table Active Codecs lists active voice codecs for the
selected line that are supported by Quadro. The order of
records in the Active Codecs' table is important for
transmitting and receiving. A codec placed at the top of the
table will be used as the preferred codec. If the remote
party does not support the preferred codec, the following
codecs will be tried out strictly in the top down order given
in the Active Codecs' table.
Each record in the table has an assigned checkbox. It is
used to select the record to be deleted or moved up or
down. The following error message results if no records
are selected and the user activates the delete button:
“No
records selected”. At least one codec must be attached to
the conference, when attempting to delete the last one the
error will occur: “At least one codec should stay in the
codec list”.
Fig. 0-48 Conference Codecs List
Add opens the Add Entry page where the user may add codecs supported by QuadroCS. The voice codec defines the voice compression algorithm
for the incoming and outgoing DSP packages.
Codecs lists all codecs supported by Quadro. If no more codecs are available (all available codecs have already been transferred to the Active
Codecs' table), the Add Entry page will display the message “No Available Codecs” instead of the drop down menu.
The Move Up/Move Down buttons are used to move the
selected codec one level up or down in the table.
The Out of Band DTMF Transport checkbox enables
DTMF code transmission in parallel with the voice stream.
The destination receiving the DTMF code will play it locally
if it supports the feature. This is helpful to avoid DTMF’s
loss upon bad traffic. This feature is valuable for all codecs
but it is especially recommended to enable it in case low bit
rate codecs (G729, G723, G726/16, etc.) are selected.
Fig.0-49 Conference Codecs – Add Codec page
SIP Settings
The SIP Settings provide information on the SIP receive UDP and TCP ports and allows to select DNS server configuration for SIP and SIP timers
scheme.
UDP Port indicates the SIP UDP (User Datagram Protocol)
receive port number. By default 5060 is selected and used.
The SIP UDP port cannot be in the selected RTP/RTCP port
range for FXS and IP lines (see RTP Settings
), otherwise the
“Mapped port for SIP shouldn’t be in RTP port range” error
appears.
TCP Port indicates the SIP TCP (Transmission Control
Protocol) receive port number. By default 5060 is selected and
used.
Please Note: Quadro will not use TCP protocol as a transport
for SIP messages if the TCP Port field is left empty.
Enable Session Timer enables advanced mechanisms for
connection activity checking. This option allows both user
agents and proxies to determine if the SIP session is still
active.
The DNS server for SIP radio button group allows to choose
between regular DNS servers configured in the DNS Settings
page and specific DNS servers for the SIP traffic.
• Use default is used to apply regular DNS servers for the
SIP traffic.
• Specific is used to enable SIP specific DNS servers. For
this selection, both primary and secondary SIP DNS
servers should be defined in the SIP DNS 1 and SIP DNS
2 text fields. At the least, a primary DNS server should be
inserted.
Fig. II-50: SIP Settings page