10.26.3.2.2. Port and Subscriber Data 
Every Port in the system must have a LIN configured, This is configured
with AMO LIN. Several ports can have the same LIN configured provided
they are located in the same office, factory section, laboratory or room.
INFO:
The LIN used in this document is for example only!
Every subcscriber must be assigned a second phone number with the
AMO SDAT which is obtainable from the external CO. This second phone
number is used together with the E911 emergency call and is transmitted
with the call.