Do prefix 0 (routing by number length, local) and prefix 00 (outgoing, local) configured on the U1980 conflict with each other

The local prefix can be added only after the ddd (national toll call) prefix and idd (international toll call) prefix are added.

A prefix is a string consisting of first several digits or all digits of a called number. Determine prefixes based on the dialing habits and the user number plan. Procedure: Note: Before adding the local call prefix, you must add the national toll call prefix and international toll call prefix; otherwise, the local call prefix cannot be added. 1. Configuring an outgoing prefix on the CLI Add outgoing prefix 0. Set the call category to basic (basic service call), set the call attribute to local (local call), enable called number change, set the number change index to 1, and set the office route selection code to 0. config add prefix dn 0 callcategory basic callattribute local cldpredeal yes cldindex 1 officeselectcode 0 Parameter description: callcategory: indicates the call type. basic: indicates basic services such as intra-office and local call services. callattribute: indicates the call attribute. For basic services, the call attribute can be inter (intra-office calls), local (local calls), interlocal (intra-office or local calls), ddd (national toll calls), idd (international calls), and emergency (emergency calls). cldpredeal: indicates whether to change a called number. If the value of this parameter is yes, you must set cldindex. cldindex: indicates the called number change index, which is defined using the config add predeal command. clipredeal: indicates whether to change a calling number. If the value of this parameter is yes, you must set cliindex. cliindex: indicates the calling number change index, which is defined using the config add predeal command. 2. Configuring an outgoing prefix on the web page (for U1900 V100R001C20 and V200R003) (1) Log in to the web management system of the U1900. (2) Choose Trunk > Prefix Configuration. On the prefix configuration page, click Create. C. In the dialog box for creating a prefix, configure the prefix. (4) Click Data Save in the upper right corner of the web page. For detailed parameter descriptions, see the online help of the web management system.

When the first several digits of an intra-office number overlap with that of an inter-office 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 dials the inter-office user.

On one U1900, one prefix may conflict with another conflict. However, the same prefix can be configured on different U1900 devices without causing prefix conflict.

Run the config billpredeal switch on command to enable called number change for U1900 CDRs.