This guide is a general list of rules and settings that need to be put in place for any managed Firewall with our phones behind it.
>>> Phone Server IP Ranges <<<
-- PRIORITY QoS Settings -- IMPORTANT !!!
>> Primary Ranges (Communication will 99.9% of the time be going to Primary)
Dallas 1 > 216.58.152.240/28
Denver 1 > 74.63.180.0/28
White Fax ATA > ataserver.ipfax.net & ataini.ipfax.net
Firewall Ports:
UDP/TCP > 5060-5062 (SIP signaling)
TCP > 9002 (NOVA Web Softphone)
UDP/TCP > 10000-27999 (Needed for Audio/Video streams RTP)
Firewall Rules:
Enable: > Consistent Nat (Sonicwall)
Disable: > SIP-ALG & H.225 (Not all firewalls/modems will have these options visible)
Bandwidth Allocation:
Our default compression uses 90k up & down for one single call.
Good example: 20 seats w/ average use of 30% or 6 active calls = 540k up & down reserved.