Firewall Ports to Open for Cloud Phones

Firewall Ports to Open for Cloud Phones

What firewall ports need to be open for VOIP phones

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VoIP Ports List

Network administrators may need to know what ports to open on the firewall for the TelephoneSystems.cloud phones. They are as follows:

52.71.103.102
35.156.148.166
DNS to 8.8.8.8 and 8.8.4.4
NTP to 0.uk.pool.ntp.org & 1.uk.pool.ntp.org
HTTPS to dmtcp.yealink.com
UDP:5060 (SIP) to 217.32.186.29 & 217.32.186.93

If router / firewall has option for "SIP ALG" or "SIP Application Layer Gateway" turn it off.



Updated on 28/05/2024 by David Wood

As senior cloud solutions architect at TelephoneSystems.cloud, with a degree in computing, I bring over 29 years of extensive experience in cloud technology.

Photo of David Wood


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