It is recommended that you whitelist ALL of VOXO's following IP address ranges and ports on your firewall for SIP signalling and RTP media traffic. This is important if you have Numbers and devices in different regions and for resiliency purposes (e.g. if North America Atlanta gateways are down, then North America Chicago gateways will be used). VOXO does not guarantee which region the media will egress from since it can depend on which PSTN-SIP Gateway delivers the call to which VOXO region.

ATL Gateways

Signalling/Media IP's

131.153.132.0/27
Ports: 5060, 8060, 443, 4998, 24998 (UDP/TCP), 5061 (TLS)
Port Range: 10,000 to 40,000 (UDP)

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Chicago Gateways

Signalling/Media IP's

204.93.199.32/27
Ports: 5060, 8060, 443, 4998, 24998 (UDP/TCP), 5061 (TLS)
Port Range: 10,000 to 40,000 (UDP)

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Domains

portal.voxo.co

Multiple Floating IPs
Ports: 443, 4445 (TCP)

app.voxo.co

Multiple Floating IPs
Ports: 443 (TCP)

api.voxo.co

Multiple Floating IPs
Ports: 443 (TCP)

webis.voxo.co

Multiple Floating IPs
Ports: 443, 4998, 24998 (UDP/TCP)
Port Range: 10,000 to 20,000 (UDP)

mobile-api.voxo.co

Multiple Floating IPs
Ports: 443 (TCP)

mobile-sso.voxo.co

Multiple Floating IPs
Ports: 443 (TCP)

webclient.voxo.co

Multiple Floating IPs
Ports: 443 (TCP)

cloudsoftphone.com

Multiple Floating IPs
Ports: 443 (TCP)

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STUN Servers

stun.l.google.com
stun1.l.google.com
stun2.l.google.com
stun3.l.google.com
stun4.l.google.com
Ports: 19302, 3478


For further information to help you configure your infrastructure with your VOXO service, initiate a chat or email support@voxo.co.

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