CLI
. The ability to see who is calling you before answering the
phone. Keep the telephone numbers of historic callers, (no more
messages taken with miss written telephone numbers). Calls can
be automatically routed directly to the correct department,
such as aged debtors straight to accounts.
BT Charges associated with CLI are as follows:
- Connection Fee £10
- Quarterly rental of £3.40
CLI is also covered
in depth in these two docs. ISDN
in English and Advantages
of ISDN.