[asterisk-dev] voicemailmain suddenly exits on DTMF: a bug?

[Giorgio Incantalupo]

Hi,
I'm using Asterisk 1.2.1 and I noticed that the voicemail suddenly exits 
if  I press  ANY  key on  the  phone while the first or the second voice 
messages (for example: vm-no.gsm or vm-message.gsm ) are played. I 
googled around but found nothing.
Upgraded Asterisk to latest version (1.2.9.1) but nothing changed.
I think it is a bug because there is no reason to exit the voicemail 
pressing any key while first message is played. Maybe it can be some 
strange voicemailmain setting but found nothing about it.
How can I solve this problem?

TIA

Giorgio Incantalupo