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OxyGEN
mini
Office
Administrator’s Guide
Voice Service
This page allows the configuration of the basic Voice over IP (VoIP) settings to enable the
Voice Service
over the broadband connection.
Figure 10.2: Voice Service
To configure the system settings for
Voice Service
:
1. Enter values for the basic SIP parameters such as
SIP domain
,
Proxy Name
or
IP
,
Proxy port
(default: 5060), and
Registration interval
(default: 300).
2. Check if the domain name must be
appended
to the username in outgoing voice-call requests
(user@domain@proxy-ip) (depends on the voice Proxy / Softswitch of the ISP).
3. Select the
Preferred codec
and
Fax support
method.
4. Click
Apply
.
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OxyGEN
mini
Office
Administrator’s Guide
External Lines
This configuration page allows the control of the external phone lines of the OxyGEN miniOffice.
It
includes a list of all types of connections to the telephony network: the Voice over IP (VoIP) service
accounts, and, when present, the FXO and External ISDN (TE) interfaces (optional features).
Figure 10.3: Phone Lines
The different types of external phone lines are organized in separate tables. The upper one contains
the different VoIP service accounts. These accounts operate as individual clients, registering at the SIP
Proxy / Softswitch specified in section
Voice Service
(see page 106).
When the OxyGEN miniOffice is equipped with one or more ISDN voice interfaces (optional features)
and at least one of these interfaces has been configured to operate in
External (TE)
mode (refer to
section
ISDN Interfaces
on page 114), the list of external lines contains also entries for the ISDN telephony
service.
You can Edit the parameters of each phone line by clicking on the corresponding icon
of the
Action
column.
The page that appears, depends on the type of phone line being configured and
contains the relevant settings.
VoIP
In the case of
VoIP
service accounts, the line settings first of all require the selection of whether the line
should be
Registered
or
Trunk
(for more details please refer to sections
Voice Service
and
VoIP Trunking
correspondingly). Subsequently, you must insert the SIP credentials
Username
,
Password
and
Authname
and the mode of transport of
DTMF
tones, with available options being RFC 2833, Inband and SIP Info
(RFC 2976).
The parameter
Line number
contains the telephony number of the account. Optionally, it is also
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OxyGEN
mini
Office
Administrator’s Guide
Figure 10.4: Phone Lines
possible to support a whole family of consecutive numbers assigned by the VoIP telephony provider.
This family of numbers can be described by specifying the first one (also known as Head Number) in
the
Line number
field followed by the range of
Consecutive
numbers (including the
Head Number
).
For example, a Line Number 2101234500 and a Consecutive value of 10, correspond to numbers
2101234500-2101234509.
Another option is to add a special prefix to the called number, and this is
performed using the
Add prefix
parameter.
Another feature is the ability to transform the called number before routing it to local extensions. This
is useful, especially in the case of ranges of consecutive numbers, which are usually directly converted
to internal numbers through simple transformations. Using the values of the example above, a typical use
would be to transform numbers 2101234500-2101234509 to internal numbers (local extensions) 500-509.
The number of right-end digits to be retained for the internal numbering scheme is the number of
Significant Digits
, and in the example described above the value would be 3.
The final step in the configuration process of the VoIP phone line is the selection of the local
extension(s) to which incoming calls are going to be directed. To this end, all the defined local extensions
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OxyGEN
mini
Office
Administrator’s Guide
(either voice interfaces or local VoIP numbers) are listed in the
List of Extensions
table.
Using the
arrow-buttons, the desired local extensions can be moved to and back from the
Selected Extensions
table. The result of this procedure is that, whenever an incoming call for the number(s) of this external
line is received by the OxyGEN miniOffice, the number is going to be compared with the list of
Local
Extensions
and, if no match is found, the
Selected Extensions
are going to ring.
ISDN
In the case of
ISDN
external lines, the first thing to configure is the ISDN mode of operation:
MSN
(Multiple
Subscriber Numbers) or
DDI
(Direct Dial In). In both of these modes, multiple numbers can be assigned
to the line. The most important functionality difference, however, is that Multiple Subscriber Numbers are
different (not necessarily consecutive) numbers over the same, single ISDN line, in a point-to-multipoint
mode of operation, whereas with Direct Dial In multiple, consecutive numbers are applied to one or
more ISDN lines, but with a point-to-point mode of operation.
Subscription to the MSN and DDI services is mutually exclusive. You have to ask your provider for the
mode of operation and the numbers assigned to your external ISDN line(s).
The rest of the configuration parameters are similar to the VoIP account settings:
you have to
configure a single (in case of MSN) or a whole range of numbers (in case of DDI), for which the incoming
calls are going to be handled by the OxyGEN miniOffice, optionally apply any number tranformations
(Significant digits and Add prefix) and then select the local extension to which the corresponding calls
are going to be directed.
Note
The ISDN parameters appear only when at least one ISDN voice interface is configured
to operate in
External (TE)
mode. Please refer to section
ISDN Interfaces
on page 114
for a description of the corresponding configuration.
Note
The operation of your external ISDN line in
MSN
or
DDI
mode depends on your ISDN
telephony service provider.
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OxyGEN
mini
Office
Administrator’s Guide
VoIP Trunking
As mentioned in sections
Foreword
,
Voice Service
and
External Lines
, the OxyGEN miniOffice can
register using multiple VoIP service accounts (external lines) to an external SIP Proxy / Softswitch.
Apart from this Client-Proxy mode, the OxyGEN miniOffice offers also a point-to-point "Trunking" mode
of operation.
Under this mode, all incoming VoIP calls received from a specific remote server are
transparently forwarded to one or more local voice interfaces or extensions. The same applies to calls
in the reverse direction: calls placed from one or more local voice interfaces or extensions are sent
directly to the remote VoIP peer. This point-to-point functionality is supported through the
VoIP Trunking
configuration page.
Selecting this entry, the following screen appears:
Figure 10.5: Voice Trunking Service
Under the
VoIP Service
heading, it is possible to configure the values for the basic SIP parameters,
such as
SIP domain
,
Peer Name
or
IP
and
Peer port
(default: 5060).
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110

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