Specifications

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a) For outbound calls, calls will be routed to SIP proxy;
b) For inbound calls, calls will be routed according to its called party number,and if the
called party number does not exist, 404 will be returned.
3) When matched port is not in idle state, 486 will be returned for FXS port, and 503 will be
returned for FXO port.
4) When domain name is used in rule, DNS must be selected and enabled first.
Rules must be filled out without any blank at the beginning of each line; otherwise the data can’t be
validated even if the system prompts successful submital.
The routing table is empty by default. The gateways will point a call to the SIP proxy server when
there is no matched rule for the call.
The format of number transformation is
Source Number Replacement Method
For example: “FXS 021 REMOVE 3” means removing the prefix 021 of the called number for calls
from FXS port, where “FXS” is source, “021” is number, and “REMOVE 3” indicates the method of
number transformation.
The format of routing rules is
Source Number ROUTE Routing Destination
For example: “IP 800[0-3] ROUTE FXO 1,2,3,4” means routing calls from IP with called number
between 8000~8003 to FXO port in a sequential selecting order of 1, 2, 3, 4. Namely, FOX Port 2 is
selected when FXO Port 1 is busy and so on.
Detailed definitions of source and number, number transformation moethods and routing destination
are shown below.
Table 2-9 Routing Table Format
Name Description
Source
There are three types of source: IP, FXS and FXO.
Among them, IP source can be any IP address and is denoted by “IP”; “IP
[xxx.xxx.xxx.xxx]” is used to denote specific IP address; “IP
[xxx.xxx.xxx.xxx: port]” is used to denote specific IP address with port
number.
FXS and FXO ports can be any port, represented with “FXS” or “FXO”;
special lines can be represented with FXS or FXO + port number, eg.
FXS1, FXO2 or FXS [1-2], etc.