[asterisk-users] Picked up calls die in exactly 20 seconds

[Juan Carlos Castro y Castro]

Weird thing happening when a call is picked up. Whether by *8 feature, 
or by directed pickup via dialplan, either with Pickup() or with 
Pickup2(), the same thing happens: the call is picked up successfully, 
and after exactly 20 seconds talking, the call is terminated. The 
originating end gets a hangup, while the side that did the pickup goes mute.

Anyone experienced anything similar?