From the menu on the right, select Security Appliance, and then Traffic Shaping.
Setup your max upstream/downstream bandwidth using the 95/5 rule.
Take the advertised speed and set 95% as the max available bandwidth. Since the upstream bandwidth is not always consistent and can differ (usually around 5%), this should set a safe limit. If you wish to be more conservative, set it to 90%. Image Added
At the bottom of the page, Click on Add a new shaping rule.
Now click, Add+ to add definitions which include the all of IP addresses listed below and the type of service, SIP (Voice).
52.11.88.63
52.27.186.140
54.86.30.113
54.144.238.86
54.148.70.218
54.148.57.6
54.149.90.30
3.13.153.32
3.13.149.205
3.19.84.238
3.86.0.189
3.130.148.40
18.215.197.50
34.202.125.217
SIP (Voice)
Set the Priority to High.
Ensure that DSCP tagging is set to "Do not change DSCP key".
