How do external users of the U1900 call intra-office users?

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.

To allow only some users to call an intra-office number on the U1900, perform the following steps: Step 1 Configure the number as a prefix and define custom call right 1 for this prefix. config add prefix dn 90 callcategory basic callattribute inter cusattribute cus1 cldpredeal no Step 2 Select custom call right 1 for users who can call this number. Specifically, on the web management system of the U1900, choose User > SIP User > Service Configuration > Outgoing Call Right and select this custom call right.

The call waiting announcement is played by the carrier.

When the prefix of the called number matches the prefix attribute configured on the U1900, the system searches for the intra-office called number first. If the called number cannot be found, the system routes the call based on the office route selection code. Application scenario: When the first several digits of an intra-office number overlap with those of an external number, a prefix conflict occurs. In this scenario, a local intra-office prefix is used. After a local intra-office prefix is configured, the system searches for intra-office numbers first. If no intra-office number matches the prefix, the system calls the external user.

The software parameter 269 determines whether to display the number of the transferred party when a call is transferred. The default value of this parameter is 1, indicating that the service party's number is displayed. If the value is 0, the original calling number is displayed. To modify the value of this parameter, run the config softargu type 269 value 0 command. Note: If the 269 software parameter value is set to 0, when an incoming call routed through the trunk is then routed to an external number, the calling number is authenticated on the carrier side, which may result in the failure of calling forwarding.