Lucent Technologies PARTNER Advanced Communications System Programming And Use Instructions page 188

Feature Reference
2. For Release 2.0 systems only , if you want to make an outside call using a
specific pool, press the idle pool button or dial i plus the three-digit pool
access code (880, 881, 882, or 883) and if desired lift the handset.
3. The button you press to dial the call depends on the number of digits you
must dial to complete the call from your area:
You also have the following options at the Call Log Dial display:
Press the Back button to return to the Telephone Number or Name Display.
Press the Call Log Display button to exit the Call Log.
The green light goes off when the feature is deactivated.
5-78
To dial the complete number including the 1, press the button under
the 1 (left button).
To include the area code but not the 1, press the button under the
area code (the second button).
To dial the seven-digit number only, press the button under the
seven-digit telephone number displayed (the third button).