3Com 56K Command Reference Manual page 131

5 If you do return the Business Modem to us, please follow these
procedures:
a Ship the unit, postage pre-paid, in its original container. If the original
container is not available, pack the unit carefully in a strong box of
corrugated cardboard with plenty of packing material.
b Be sure to include your SRO number inside the package, along with
your name and address. Put your return address and your SRO number
on the shipping label as well.
c Ship the package to the following address:
3Com will not accept packages sent COD, so be sure to send the modem
postage paid.
3Com will repair your Business Modem and return it to you via United
Parcel Service.
Problems that Occur After Connecting
3Com Corporation
SRO# _______________
attn: Dock 15 PCD
1800 West Central
Mount Prospect, IL 60056
15-7