371
Item Description
Destination Number
Prefix
Enter the destination number prefix and length. Suppose the destination
number prefix is 4100, and the number length is 6. This configuration matches
destination numbers that are 6-digit long and start with 4100.
A dot can be used after a number to represent a character. This configuration
does not support other characters.
Number length
Destination IP address
Enter the destination IP address and port number.
Port Number
Area Prefix Enter the area prefix added before the calling numbers of outgoing calls.
Area prefix
When the local SIP server is connected to the extranet, external users can originate calls to internal
users registered with the local SIP server. For calls from external users to internal users, the local
SIP server removes the configured area prefix from each called number to converts it to an internal
short number. For example, if an external user dials number 01050009999, the local SIP server
checks whether any area prefix matches the called number. If the area prefix 0105000 is available,
the local SIP server removes the prefix 0105000 from the called number and sends the call to 9999.
Select Voice Management > SIP Local Survival > Area Prefix from the navigation tree to access
the page as shown in Figure 757.
Figure 757
Con
figuring a call-in number prefix
Enter the call-in number prefix, and click Add a Prefix.
You can configure up to eight call-in number prefixes. The local SIP server adopts longest match to
deal with a called number.
Call authority control
Configure a call rule set
Select Voice Management > SIP Local Survival > Call Authority Control from the navigation tree,
and click Add to access the page as shown in Figure 758.
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