3CX Phone System has a coded limit that controls the duration of a voicemail message. This is set by default to 120 seconds. However, in certain circumstances, you may wish to change the 3CX Voicemail timeout from the default of 2 minutes (120 seconds) to something else. In this case, we will show how we can change it to 5 minutes. This change can be achieved as follows on v15: [...]
The calls end after 3 hours to prevent a scenario where a person makes a call somewhere and forgets to hang up AND the gateway does not detect the hangup. This avoids terminated calls from remaining active and helps to avoid charges. It is a fail safe feature. The 3CX Phone System is set to end calls every 10800 Seconds. This Value can be changed to any time value you like from [...]
Copyright © 2026