It took me a long time to hunt these down and I think default passwords should be freely available.
Aspire webpro (default ip is 172.16.0.10):
Administrator Username: ASPIRE
Administrator Password: 12345678
Extension Username: extension number
Extension Password: 1111
UltraMail (default ip is 192.168.1.250):
Service Number: 2000
System Password: CTL
Hopefully none of you are stuck with one of these systems. Hopefully given the option you choose something like Asterisk. Hopefully if 1 and 2 are not true this information helps you.