Domain Name Servers

• secure.counterpath.com
• secure-east.softphone.com
• secure-west.counterpath.com

IP Addresses

• 40.78.10.175
• 52.183.45.217
• 52.250.216.127
• 69.90.51.0/24
• 173.244.45.15
• 198.204.63.15
• 216.93.246.0/24

Port(s) to Open

• 5060