How to allow only some users to call an intra-office number on the U1900 series unified gateway

Two methods are available: 1. Configure direct inward dialing (DID) numbers for intra-office users. External users can directly dial the DID numbers. 2. Configure the automatic switchboard service for users without DID numbers. When an external user dials the switchboard number, the call can then be transferred from the switchboard to the extension.

You can add external users to the calling party blacklist. 1. Add external users to the personal blacklist so that external users cannot call the current user. 2. Add external users to the system blacklist so that external users cannot call all intra-office users.

The following uses the U1930 as an example. Commands for modify the outgoing call rights for a single user: [%eSpace U1930(config)]#config modify subscriber dn 6101 priorlevel default operateout del outgoingrights local //Delete the outgoing local call right for user number 6101. [%eSpace U1930(config)]#config modify subscriber dn 6101 priorlevel default operateout del outgoingrights local&ddd //Delete the outgoing local and national toll call rights for user number 6101. [%eSpace U1930(config)]#config modify subscriber dn 6101 priorlevel default operateout add outgoingrights local //Add the outgoing local call right for user number 6101. [%eSpace U1930(config)]#config modify subscriber dn 6101 priorlevel default operateout add outgoingrights local&ddd //Add outgoing local and national toll call rights for user number 6101. [%eSpace U1930(config)]# config modify subscriber dn 6101 priorlevel default operateout add outgoingrights Inter&local&ddd //Modify the outgoing call rights for user number 6101 to outgoing intra-office, local, and national toll call rights. Commands for modify the outgoing call rights for multiple users in batches: [%eSpace U1930(config)]#config modify subscriber dn 6101 priorlevel default operateout del outgoingrights local number 100 //Delete the outgoing local call right for 100 user numbers starting from 6101. [%eSpace U1930(config)]#config modify subscriber dn 6101 priorlevel default operateout add outgoingrights local number 100 //Add the outgoing local call right for 100 user numbers starting from 6101. %eSpace U1930(config)]# config modify subscriber dn 6101 priorlevel default operateout add outgoingrights Inter&local&ddd number 100 //Modify the outgoing call rights for user numbers starting from 6101 to outgoing intra-office, local, and national toll call rights. Note: inter indicates the intra-office call right, local indicates the local call right, ddd indicates the national toll call right, and idd indicates the international toll call right.

No.

The intra-office prefix needs to be configured no matter the PSTN number or short number of an intra-office user will be called. Calling the PSTN number of an intra-office user fails if the intra-office prefix of the PSTN number is not matched. Therefore, configure an intra-office prefix for the PSTN numbers.