QuadroFXO Manual II: Administrator's Guide
Administrator's Menus
QuadroFXO (SW Version 3.0.x)
34
Add
opens the
Add Entry
page where the user may add
codecs supported by Quadro. 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.
Fig. II-50: Extension Codecs - Add Codec page
The
Move Up/Move Down
buttons are used to move the selected codec one level up/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.
Enable FAX Support
checkbox enables the FAX tone detection and the T.38 codec support for the FAX transmission from/to the Fax Machine/Fax
modem attached to the line.
T.38 Invite Only
checkbox is available when FAX support is enabled and restricts connection establishment to T.38 codec for the corresponding
extension, i.e. only T.38 codec will be used.
Attention:
Selecting the
T.38 Invite Only
checkbox will deny common outgoing calls on the extension. These checkboxes take effect ONLY on FXS
lines. They are not functional when extension is attached to the IP Line.
Force Self Codecs Preference for Inbound Calls
checkbox enables the usage of the own preferred codecs (if available on both peers) for the IP
connection establishment on the extension.
Call Back Services
With the
Call Back
service the PSTN callers can save the call charge when calling to/through Quadro. Quadro gives a possibility to create a list of
those trusted PSTN callers that are allowed to make free of charge calls to Quadro’s Auto Attendant or through its Call Relay menu to the third party
IP or PSTN destination.
Two types of Call Back are available on the Quadro:
Instant Call Back
and
Roaming Call Back
.
Instant Call Back
For
Instant Call Back
service a list of trusted PSTN callers must be pre-configured in the Authorized Phones Database on the Quadro. Call Back
service should be enabled and a valid callback PSTN destination should be specified for the corresponding PSTN caller.
To use
Instant Call Back
, PSTN caller registered in the Authorized Phones Database should simply call to Quadro’s PSTN number (that should be
previously routed to the Auto Attendant or Routing Manager from the
page) from the global PSTN network, let the call ring twice and
then hang up. Call Back will get instantly activated, i.e. Quadro will call back to the defined Call Back destination and by answering the incoming call
PSTN party will be automatically connected either to Auto Attendant or Routing Manager depending on the configuration of the corresponding FXO
line on the Quadro.
Roaming Call Back
The
Roaming Call Back
allows to configure the call back by callers registered in Authorized Phones Database on the Quadro when calling from a
PSTN number.
Roaming Call Back
consists of a
Permanent Call Back
mode accessible from the Quadro’s Auto Attendant.
Permanent Call Back
service offers a convenience of registering new trusted PSTN Callers and to edit the Call Back destination of an existing
PSTN Caller in the Authorized Phones Database. By calling Quadro’s PSTN number (that is previously routed to the Auto Attendant) caller enters
the Quadro’s Auto Attendant and by
Permanent Call Back
menu (see Call Codes) he is able to register himself (or anyone else) as a trusted PSTN
caller that is allowed to place free of charge calls to Quadro or through its Call Relay menu to the third party IP or PSTN destination as well as to
modify the Call Back destination of an already registered Caller in the Authorized Phones Database.
Entering the
Permanent Call Back
menu, system will ask to login by dialing existing extension number and an appropriate password. PSTN caller’s
address confirmation will be required, or, if not detected automatically, it should be defined manually (in particular cases when caller is configuring
Permanent Call Back service for him (or for anyone else) calling from the other number, other caller number should be defined here, so next time
calling from that number,
Instant Call Back
will get automatically activated). Call Back destination, where Quadro should call to, will be requested
afterwards. It can be the same as the caller’s address or can be different. When system accepts the call back settings, the corresponding entry will
be logged to the Authorized Phones Database.
PSTN caller will be disconnected from the Quadro’s Auto Attendant and the defined Call Back destination will receive a call from the Quadro in the
next 45 seconds (if FXO line is available on the Quadro, network connectivity is fine and destination is reachable) if the detected PSTN caller
address corresponds to the one applied by the caller (i.e. caller hasn’t changed the detected caller address) or if caller address is not detected at all
(due to system configuration problems or CO peculiarity). Otherwise, system will send a call back to the specified callback destination only if call
arrives from the address logged in the Authorized Phones Database. Answering the incoming call, PSTN caller will be connected to the Quadro’s
Auto Attendant.
