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Editorial Team
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Asked: 2026-05-15T11:06:43+00:00

I am beginner to free switch.I have gone through the configuration file vars.xml in

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I am beginner to free switch.I have gone through the configuration file vars.xml in free switch.

In this I have seen the following configurations.

  <X-PRE-PROCESS cmd="set" data="internal_auth_calls=true"/>
  <X-PRE-PROCESS cmd="set" data="internal_sip_port=5070"/>
  <X-PRE-PROCESS cmd="set" data="internal_tls_port=5071"/>
  <X-PRE-PROCESS cmd="set" data="internal_ssl_enable=false"/>
  <X-PRE-PROCESS cmd="set" data="internal_ssl_dir=$${base_dir}/conf/ssl"/>

In the above I am having the doubt with tls_port.
What is the use of tls_port .I have searched about this in net and I have read that tls protocol is used for secure data transfer in network.

So please explain me about the communication in freeswitch.

Thanks in advance.

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1 Answer

  1. Editorial Team

    Secure Sockets Layer (SSL) and Transport Layer Security (TLS) are two cryptographic protocols which permits to communicate safely and guarantee data integrity over TCP/IP networks, as Internet for example.

    TLS e SSL cypher communication end-to-end at transport layer. Other well known protocols as TCP, UDP enable communication at the same layer.

    So as TCP uses port 80 by defualt for communication, you must set a port for your TSL protocol in free switch. This is the meaning of tsl_port parameter previously.

    Please keep in mind that TLS is disabled by default, set internal_ssl_enable and/or external_ssl_enable to “true” to enable.

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