2N OMEGA Lite, User Manual

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4.11. SIP Proxy
The 2N
®
OMEGA Lite Ethernet module is delivered with an integrated SIP
proxy, which is able to work as a private branch exchange for SIP telephones. It is
easy to configure; all you have to do is fill in the routing table.
Above is an example of a filled-in routing table, which gets displayed after
you open the SIP proxy menu in the Telephony services group tag.
Each row represents one rule. After obtaining the call-establishing request,
the SIP proxy searches the table from top to bottom for the relevant routing rule.
The relevant rule is based on a comparison of the called destination and the value
in the first table column. If the called party‟s ID starts with the prefix stated in the
If
prefix column of the routing rule, the search is terminated and the call is routed
according to the found rule.
The last column in the table represents the default routing rule. It cannot be
deleted. it governs all calls for which no explicit routing rule has been found.
The routing rule determines what the SIP proxy should do with a call. A call
may be rejected, forwarded to another host and/or port, forwarded to a VoIP line of
the module, or routed via the database of available SIP telephones. Before any of
the above men
tioned operations is executed, the called party‟s identification may
be modified by removing a certain number of characters from the left, or adding a
new string to the ID beginning as the case may be (refer to the
Remove and Add
columns).
Click on the symbol to move to the routing rule detail for making
changes.