Configure Trunks to use TCP for SIP signalling

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To use TCP for SIP signalling, perform the following steps:

Step One - SIP Settings

Enable TCP in SIP Settings:

  1. From the UCx Web-based Configuration Utility, navigate to PBX - PBX Configuration - SIP Settings page
  2. Scroll down to the Other SIP Settings option
  3. Enter the following value: tcpenable = yes
  4. Click on Submit Changes button

Step Two - Trunk

Add "transport=tcp" to the trunk configuration:

  1. From the UCx Web-based Configuration Utility, navigate to PBX - PBX Configuration - Trunks page
  2. Select the desired trunk
  3. In the PEER Details box, add transport=tcp
  4. Click on Submit Changes button
  5. Click on Apply Config bar

 

Step Three - SIP Extension

Set transport to TCP:

  1. From the UCx Web-based Configuration Utility, navigate to PBX - PBX Configuration - Extensions page
  2. Add or Update the SIP extension
  3. Scroll down to the DEVICE OPTIONS section
  4. Set Transport to TCP Only
  5. Click on Submit Changes button
  6. Repeat the above steps for all SIP extensions
  7. Click on Apply Config bar
Page Tags: 
TCP
SIP
tcpenable
transport