[Asterisk-Users] Can't get Pickup app working

[Álvaro Palma]

I'm trying to set the Pickup feature. I'm setting my extensions.conf as:

exten => _*.,1,Pickup(SIP/${EXTEN:1})

but if, for example, extension 03 is ringing by a call made from 
extension 01, and I try to pick it up from extension 02 (by dialing *03 
from extension 02), I can see in the Asterisk console (Verbosity set to 10):

-- Executing Dial("SIP/01-512c", "SIP/03") in new stack
-- Called 03
-- SIP/03-4ae2 is ringing
-- Executing Pickup("SIP/02-10d8", "SIP/03") in new stack

but nothing happens, and extension 02 only gets busy tone.

I read this:

http://www.voip-info.org/wiki/view/Asterisk+cmd+Pickup [^]

and this:

http://bugs.digium.com/view.php?id=5998 [^]

but I don't know if these were corrected in 1.2.6. Any clues about it? 
Is maybe a misconfiguration from my part?

-- 
Atly.
Alvaro Palma