QX5
QXFXO4/QXISDN4/QXE1T1/QXFXS24; (SW Version 6.0.x)
27
QXFXO4/QXISDN4/QXE1T1/QXFXS24 Manual II: Administrator’s Guide
warning message will appear. The system also prevents uploading if there is not enough memory available for the corresponding extension.
This will cause the “You do not have enough space” warning message to appear.
Choose File
opens the file chooser window to browse for a new announcement.
The
Download Ringing Announcement
and
Remove Ringing Announcement
links appear only if a file has been uploaded previously. The
Download Ringing Announcement
link is used to download the announcement file to the PC and opens the file-chooser window where the
saving location may be specified. The
Remove Ringing Announcement
link is used to restore the default ring back tones.
•
RTP Channel
selection is used to define the channel for the broadcast streaming. The RTP channels are created by the system administrator.
Therefore if you are experiencing problems with using the RTP channels as ringing announcement, or no RTP channels are available to select on
this page, turn to your system administrator for clarification.
Extension Codecs
To establish an IP voice communication, call participants have to use the same codec. When establishing a communication line, this codec is negotiated. If
the caller does not find an appropriate codec, the communication does not take place. To allow communication with all IP callers, it is helpful to support as
many codecs as possible. In this case, all codecs that the system offers should be enabled in the
Codecs
table. On the other hand, some codecs require quite
a high transfer rate of up to 64 kBit/s. If you definitely do not want to use these codecs, make sure they are disabled in the
Codecs
table.
The
Codecs
table lists the voice and video codecs supported by
the QX. Each table entry is assigned a checkbox that is used to
manipulate the entry, for example to disable, to move it up or
down, etc.
The table entries in bold type indicate codecs enabled for the
selected extension/attendant. The enabled codecs participate in
codec negotiation at the call setup. The order of the enabled
codecs is very important. Each codec in the table has a higher
priority than the codecs below it, and a lower priority than the
codecs above it. A codec placed at the top of the table is used as
the preferred codec. When establishing a call, the system will try
this codec first. If the remote party does not support the preferred
codec, the following codecs will be tried out strictly in the order
given in the
Codecs
table.
Please Note:
Pay attention when configuring Auto Attendant
Codecs as they are used by virtual extensions for redirecting the
incoming calls.
Enable/Disable
enables or disables the selected codec. Disabled
codecs do not participate in codec negotiation, i.e. they will never
be used to for call setup. At least one codec must be enabled;
otherwise voice communication with an extension/attendant will
be impossible.
Fig.II- 28: Extension Codecs list
Move up
moves the selected codec one level up, increasing the codec's priority.
Move down
moves the selected codec one level down, decreasing the codec's priority.
Make preferred
moves the selected codec to the top of the table, setting its priority to the highest. Clicking the
Make preferred
button when a disabled
codec is selected will first enable the codec and then move it to the top.
The following settings are available for user extensions and attendants only:
Out of Band DTMF Transport
enables the DTMF code transmission in parallel with the voice stream. Destination received the DTMF code will play it
locally if it supports the feature too. This helps avoid DTMFs loss in case of heavy traffic. The feature is valuable for all codecs but it is especially
recommended for low bit rate codecs, such as G.729, G.726/16, etc.
Enable T.38 FAX
enables the T.38 codec support of FAX transmission for incoming unified FAX messages (fax to mailbox) and remote IP devices
connected to Epygi unit via routing rules which using the target extension user settings (UES).
Enable Pass Through FAX
enables the G.711 codec support for incoming unified FAX messages and IP devices connected to the attached IP line.
If both of the above checkboxes are enabled, the T.38 codec will be used as a preferred codec for FAX transmission. If it is not supported by the peer, the
G.711 codec will be used instead.
Enable Pass Through Modem
checkbox is available for the Auto Attendant and the extensions attached to the FXS lines only. This checkbox enables the
modem tone detection and the G.711 codec support for the data transmission from/to the modem attached to the line. During data transmission,
and Echo Cancellation are automatically disabled on the line.
Please Note:
If the extension/attendant is intended to accept modem connections, disable the
Enable T.38 FAX
checkbox to allow the system to identify
the modem tones correctly. Otherwise, the modem connection may fail.
Force Self Codecs Preference for Inbound Calls
checkbox enables the usage of your own preferred codecs (if available on both peers).
