The vos3000 can directly specify the landing or prohibition of landing by the name of the landing gateway in the docking gateway.
Vos2009 can walk through the gateway by adding a fixed prefix
For example, caller1 docking fills in the called rewriting rules *:a*
Caller2 docking fills in the called rewriting rules *:b*
The a and b prefixes correspond to the two landing gateways callee1 and callee2 respectively.
Then fill in the a and a, b respectively on the gateway prefixes of the landing gateway callee1 and callee2.
The meaning is that the landing 1 only allows the called number to be prefixed with a traffic.
Landing 2 only allows the called number prefixed with a or b traffic to pass
Finally, the called rewriting rule at the landing gateway removes the called number prefix of a and b, and restores the original original called number.
If the rate of the a, b prefix does not exist in the account rate of the docking gateway, it needs to be in the system parameter.
SERVER_GATEWAY_ROUTE_PREFIX fill in a, b to ignore the matching of a, b to the charging prefix
If there are other rules for docking and landing, it should be superimposed with the rule.