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11x:
A three-digit number that starts with 11. This is used to finish emergency calls.
9xxxx:
Five-digit number that starts with 9. This is used to finish special service calls.
17911:
Sent out immediately after receiving 17911. This is an instance of ending a special number call.
5.7.2 Routing
Configuration
Click the Routing Map link under Advanced Config in Figure 5 – 1. The following displays:
Figure 5 – 7b
Through the routing map, GT48 can find a way to reach other gateways or proxy servers.
Note: All the calls that are not defined in the Route Map looks to the SIP Proxy Server for route guidance.
Origination
Number
Action
Destination
Destination Information
IP 9
REMOVE FXO
5
IP
8
REMOVE
FXS
1, 2, 3
FXS 88xx KEEP
IP
192.168.2.10:5066
FXS 16300 KEEP
CODEC
PCMU/20/0
FXS [2-9]
ADD
NONE
021
From the example above, you can see the setup of a route consists of five fields: Origination, Number, Action,
Destination, and Destination Information. This means to route the Number from the Origination to the Destination.
Origination filed values can be FXS and IP.
Number field values can be any number from 1 to 9, *, #, x, etc. which work like those in the Digit Map. The rules
are:
¾
Specific numbers, such as 114, 3224000
¾
Τ
he beginning digits of a number, such as 32xxxx, or 32x, or 32