Inter Tel Axxess v9.115
Recently installed IPRC with 4 ip phones. They have been working fine(1 month)until this week when I started getting the SYS ALARM #32 INSUF BAND errors for the two phones that are in use. One phone is in California the other central Pennsylvania and both show that error. These phones are in home offices and one uses Verizon FIOS.Connection for IPRC card is routed through firewall with all appropriate ports opened and Public ip is NAT'd to the private ip of the card. What are some tests I could run to narrow down the cause.
Thanks