System Administration Guide: Network Services

UUCP /etc/uucp/Dialcodes File

The /etc/uucp/Dialcodes file enables you to define dial-code abbreviations that can be used in the Phone field in the /etc/uucp/Systems file. You can use the Dialcodes file to provide additional information about a basic phone number that is used by several systems at the same site.

Each entry has the following syntax:

Abbreviation   Dial-Sequence

This field provides the abbreviation that is used in the Phone field of the Systems file.


This field provides the dial sequence that is passed to the dialer when that particular Systems file entry is accessed.

Compare the fields in the two files. The following are the fields in the Dialcodes file.

Abbreviation   Dial-Sequence

The following are the fields in the Systems file.

System-Name   Time   Type   Speed   Phone   Chat Script

The following table contains sample content for the fields in a Dialcodes file.

Table 26–4 Entries in the Dialcodes File







In the first row, NY is the abbreviation to appear in the Phone field of the Systems file. For example, the Systems file might have the following entry:


When uucico reads NY in the Systems file, uucico searches the Dialcodes file for NY and obtains the dialing sequence 1=212. 1=212 is the dialing sequence that is needed for any phone call to New York City. This sequence includes the number 1, an “equal sign” (=) meaning pause and wait for a secondary dial tone, and the area code 212. uucico sends this information to the dialer, then returns to the Systems file for the remainder of the phone number, 5551212.

The entry jt 9=847- would work with a Phone field such as jt7867 in the Systems file. When uucico reads the entry that contains jt7867 in the Systems file, uucico sends the sequence 9=847-7867 to the dialer, if the token in the dialer-token pair is \T.