AT&T EL51110 User Manual page 61

Appendix
FCC Part 68 and ACTA
The term ''IC:'' before the certification/registration number only signifies that the Industry Canada
technical specifications were met.
The Ringer Equivalence Number (REN) for this terminal equipment is 0.1. The REN is an indication of
the maximum number of devices allowed to be connected to a telephone interface. The termination
on an interface may consist of any combination of devices subject only to the requirement that the
sum of the RENs of all the devices does not exceed five.
This product meets the applicable Industry Canada technical specifications.
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