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Configure SIP gateways
In this menu, you can configure
and delete SIP gateways (VoIP
telephony). In addition, you are
given a central overview of the con
-
figured SIP gateways.
SIP gateways enable connection
of the Siedle Access server on the
network side to an SIP-capable
telephone system via a SIP trunk.
A SIP trunk is a technology which
allows IP-based telephone systems
to manage and operate many call
numbers via an access point.
Configuration – Access System
General parameters
•
Name:
Displayed device name in
the system (e.g. SIP gateway)
•
Description:
Short description
(
e.g. Public telephone network con
-
nection ISDN). Always assign mean
-
ingful names and descriptions.
Connection
•
Prefix:
Preceding number to
obtain a public telephone network
link (external line digit). One (e.g.
0
)
or more digits (e.g.
99
). Using these
indicates to the Access system that
you wish to make a call into the
external telephone network which
can then be initiated.
Note:
A prefix must be assigned to
each SIP gateway. A prefix should
be a number or number combina
-
tion which is not used for internal
calls in the Access system. A prefix
for SIP gateways can be assigned
any number of times in the Access
system (e.g. connection of different
telecommunication systems with the
same prefix).
•
IP address:
IP address of the SIP
gateways in the local network
•
Channels:
Maximum number of
SIP speech channels available to the
SIP gateway in parallel.
•
Size of audio frame [ms]:
Length
of the audio content, i.e. the trans
-
mitted RTP data packages (audio
frame) in milliseconds. The value to
be set depends on the remote sta
-
tion. The values which can be set are
prescribed (
20ms
and
40 ms
). Only
Audio-Codec
G.711
is used.
•
External connection:
This option
must be set if a telephony gateway
is used for external telephony (public
telephone network).
Linked devices
In the
Linked devices
area, the
devices configured in the Access
system are displayed with an
assigned incoming call number.
A link can be configured in two
ways depending on the device:
• Assignment of an assigned
incoming call number for the
call function of the device
Siedle App iPhone
(field: Call
number).
• Assignment of an assigned
incoming call number for the device
External telephone
(field: Call
number).
Important!
• A gateway can only be deleted if
there are no linked devices within it.
• If you remove a device with the
Delete device function, this device is
completely deleted from the system.
If you wish the device to be retained,
in the
Users
menu at the relevant
device, the call number of a different
gateway has to be entered. Without
a call number, the Siedle iPhone app
for instance could only be reached
over the network and no longer
over the telephony connection if the
network were down or otherwise
not available.
Incoming call numbers
In the
Incoming call numbers
area,
you can allocate the call numbers or
call number block (e.g. 123-40 to
123-49) assigned to the SIP gateway
from the public telephone network.
(
Example:
The SIP gateway is linked
to an external ISDN system con
-
nection with a consecutive 10 call
number block (e.g. 123-40 to 123-
49).).
You can assign the entries to the
individual Access call destinations
in the
Telephony connection >
Incoming calls
menu.
Configuration – Access System
–
Incoming calls
•
Number:
Individual complete
call numbers (e.g. 123456) or call
number block without extension
(e.g. 123-40 to 123-49 -> 123).
•
Start of the range:
Starting range
of the extension range of a cohesive
call number block (e.g. 12340 to
12349) – lowest numbers (e.g. 40)
•
End of the range:
End range of
the extension range of a cohesive
call number block (e.g. 123-40 to
123-49) – highest numbers (e.g. 49)
Remarks
• Depending on the telephony
system used, you can enter the
dialling code/country dialling code
in all customary formats (e.g. The
country dialling code for Germany:
49
,
0049
,
+49
)
• If you have several non-cohesive
call numbers, you must enter these
individually in the
Number
field. To
allow an external call to be held over
the public telephone network using
a device, in the
Users
menu, in the
higher-level folder of this device, you
must have configured a number plan
and an
External call
with entered
Prefix
of the SIP gateway. A prefix
should be a number or number
combination which is not used for
internal calls in the Access system.
Setting up the Access system
Configuring the server functions
