How many blacklists and whitelists does U1980 support?

The matching sequence is whitelist -> blacklist -> user-defined -> predefined. If a URL matches the whitelist, the access is permitted. Otherwise, the device searches for a match of the URL in the blacklist. If a match is found in the blacklist, the access is blocked. If no, the device continues to search for a match of this URL in the user-defined categories. If a match is found, and the action for the matched category is Block, the access is blocked. If no match is found, the device continues to search for a match of this URL in the predefined rules.

The maximum number of entries that can be configured in the system blacklist and whitelist is half of the maximum number of users supported by U1900 series. U1981: 10000 U1980: 5000 U1960: 500 U1930: 300 U1911: 50 U1910: 50

After logging in to the U1900, run the following command to add numbers to the calling or called party blacklist or whitelist: config add blackandwhite dn 1000 calltype caller/callee grouptype whitegroup/blackgroup For example, to add 1000 to the called party blacklist, run the config add blackandwhite dn 1000 calltype callee grouptype blackgroup command.

U1980 provides 10 slots: Slots 0 and 1 are control board slots used to install the IP PBX-SMCU boards. Slots 2 to 9 are used to install interface boards and SC1-MRS boards, and the boards are slot compatible.