I have recently "inherited" a Lucent system 85 PBX system. The standard desk phone is the analog 2500 set, but the Staff gets the 7403's. One of the managers is asking to have his phone set up for "speed-dial." He wants to hit one of the 10 buttons to dial an in-house 5-digit extension. I can find NO manuals anywhere in the plant. Can someone help me with this? Can it be done at all? Thanks in advance!