An issue with Calls Disconnecting After 20 Seconds When Picked Up Using 20 in Ring Group

[big.LITTLE]

Hello 3CX Community,

We're encountering an issue where, during an external call that rings through a ring group, if one of the phones attempts to pick up using *20*, the call disconnects *20* seconds after being picked up.

• Swapping the phone did not resolve the issue; the problem remains the same.
• When calls advance to the second tier of ringing and are answered, they disconnect after precisely 20 seconds.
• We're using 3CX v20 and have reviewed the basic settings, but the issue continues to persist. Any advice or suggestions on what to investigate or how to further troubleshoot this issue would be greatly appreciated.

Desk phones are Yealink, predominantly T27G, and some T33G.

Thank you in advance for your assistance!

 

[TheodorosG_3CX]

Just to clarify, the call is picked up and the user can talk, but it drops after 20 seconds?

 

[big.LITTLE]

yes, and they either drop off or cut off.

 

[TheodorosG_3CX]

The call is dropped or the audio?