Prefix |
0-21 alphanumeric characters |
The prefix digit or digits for the range of telephone numbers for subscribers on this machine. The prefix can be used to distinguish between machines that have overlapping extensions. For example, the prefix 22 can be used to uniquely identify subscribers in one city that happen to have the same extension as subscribers on a networked machine in another city. Note that the combined length of the prefix and the extension cannot exceed 24 characters. |