How to turn on or turn off the SIP module

Load or unload the SIP module as required.


The SIP module is enabled by default and provides the following functions for SIP traffic:

  • Uses UDP port 5060.
  • Handles NAT of local IP addresses to public IP addresses.
  • Enables a dynamic voice channel by setting up an expected voice connection in the firewall.


To turn the SIP module on or off from the command line interface (CLI), choose option 4. Device Console and do as follows:


  1. To turn the SIP module on, type: system system_modules sip load
  2. To turn the SIP module off, type: system system_modules sip unload