I have a 3Com NBX 100 phone system which is ethernet/IP attached and
can
send voice via email via VPIM. My mail server is Groupwise GWIA 6.5.0.

Both hosts are static natted via BM 3.7sp2 to different public ip
addresses. SMTP filter exceptions for GWIA and 1 stateful SMTP
outbound
for the 3Com.

Following is what I have posted in 3Com NBX Users forum: