SimpleVoIP: Firewall Setup

We are always adding servers, proxies, new ISPs, etc.

Individually entering server IP's to be whitelisted by your firewall manager can be problematic.

Most customers don’t block outbound traffic and therefore our phones are able to reach their necessary servers for calling as well as updates with no difficulty. However, DNS is probably the easiest to manage. We have load balancers and multiple A records, as well as DNS-SRV and NAPTR for the phones. 

We highly recommend opening *.simplevoip.us and *.s.simplevoip.us

Brand new, or factory reset phones, will reach out to a redirect server hosted by the manufacturer. We recommend opening the following addresses based on your device when setting up or factory resetting your device:

1. *.yealink.com
2. *.panasonic.com
3. *.polycom.com

Phone Firmware Upgrade (All Brands)

*.amazonaws.com

Proxy and Config Servers used by SimpleVoIP

Us-central.simplevoip.us

Us-west.simplevoip.us

Us-east.simplevoip.us

Config.simplevoip.us

/24 Block IP Addresses used by SimpleVoIP

8.30.173.0/24

8.45.131.0/24

8.36.70.0/24

161.38.208.0/24

161.38.210.0/24

161.38.212.0/24

166.78.105.0/24

133.162.204.84

54.174.154.29

75.2.24.197

99.83.194.46

TCP/UDP Ports used by SimpleVoIP

TCP 80

TCP 443

TCP 8000

TCP/UDP 8443

TCP/UDP 5060

TCP/UDP 5064

TCP/UDP 5065

TCP/UDP 7000

TCP/UDP 7001

TCP/UDP 8080

TCP/UDP 8021

TCP/UDP 8080

TCP/UDP 8031

 UDP 123

UDP 8500 – 59999 Used for RTP and Phone Signaling

Regular operation of phones:

1. On the very first boot or after a factory reset, phones look for a redirect server at *.yealink.com or *.panasonic.com or *.polycom.com
2. Next, they are redirected to our configuration server to download configs and firmware at https://config.simplevoip.us
3. Next, they attempt to register with our SBCs at https://*.simplevoip.us

SV Mobile:

Mobile App Provisioning:

exports.cloudsoftphone.com

primary.exports.cloudsoftphone.com

providers.cloudsoftphone.com

Mobile App Messaging:

mmmsg.acrobits.net

Mobile App Push Notifications (usually only required if Push Notifications are failing)

Reach out to SimpleVoIP support for a complete list of IPs if your push notifications are consistently failing. If you're having trouble receiving push notifications, please note that if you just downloaded the app for IOS, it could take a few minutes for Apple to register your push token with our services.