If your team will be using the Toolbar inside of Salesforce, it would be wise to consider adding *.salesforce.com in the proxy exclusions. Any interruptions to Salesforce while agents are using the Toolbar can have a direct impact to Toolbar stability and performance.
North America Virginia Gateways:
Signalling IPs:
54.172.60.0 54.172.60.1 54.172.60.2 54.172.60.3 Ports: 5060 (UDP/TCP), 5061 (TLS)
Media IPs:
54.172.60.0/23 34.203.250.0/23 Port Range: 10,000 to 20,000 (UDP)
Signalling IPs:
54.244.51.0 54.244.51.1 54.244.51.2 54.244.51.3 Ports: 5060 (UDP/TCP), 5061 (TLS)
Media IPs:
54.244.51.0/24 Port Range: 10,000 to 20,000 (UDP)
Signalling IPs:
54.171.127.192 54.171.127.193 54.171.127.194 54.171.127.195 Ports: 5060 (UDP/TCP), 5061 (TLS)
Media IPs:
54.171.127.192/26 52.215.127.0/24 Port Range: 10,000 to 20,000 (UDP)
Signalling IPs:
35.156.191.128 35.156.191.129 35.156.191.130 35.156.191.131 Ports: 5060 (UDP/TCP), 5061 (TLS)
Media IPs:
35.156.191.128/25 3.122.181.0/24 Port Range: 10,000 to 20,000 (UDP)
Signalling IPs:
54.65.63.192 54.65.63.193 54.65.63.194 54.65.63.195 Ports: 5060 (UDP/TCP), 5061 (TLS)
Media IPs:
54.65.63.192/26 3.112.80.0/24 Port Range: 10,000 to 20,000 (UDP)
Signalling IPs:
54.169.127.128 54.169.127.129 54.169.127.130 54.169.127.131 Ports: 5060 (UDP/TCP), 5061 (TLS)
Media IPs:
54.169.127.128/26 3.1.77.0/24 Port Range: 10,000 to 20,000 (UDP)
Signalling IPs:
54.252.254.64 54.252.254.65 54.252.254.66 54.252.254.67 Ports: 5060 (UDP/TCP), 5061 (TLS)
Media IPs:
54.252.254.64/26 3.104.90.0/24 Port Range: 10,000 to 20,000 (UDP)
Signalling IPs:
177.71.206.192 177.71.206.193 177.71.206.194 177.71.206.195 Ports: 5060 (UDP/TCP), 5061 (TLS)
Media IPs:
177.71.206.192/26 18.228.249.0/24 Port Range: 10,000 to 20,000 (UDP)
*.twiliocdn.com
*.twilio.com
*.hostedcc.com
*.amazonaws.com
*.cxengage.net
fonts.googleapis.com
*.salesforce.com ***
*.zendesk.com ***