Kalexius
Applications

3cx

Beginner3cxPeoplefoneTelephony
2 views 0 found this helpful Last updated July 23, 2026

Problem

Issue with call ends in 25 secs

Solution

Change UDP to TCP

Step-by-step instructions

  1. 1Open your 3cx App
  2. 2On the right top, click on the extension number (ex: 213)
  3. 3Edit -> Advance Settings -> Sip Transport -> UDP by default, change it to TCP and click Ok

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