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