Segmentation fault when doing an attended transfer

Hi Guys,

I’m wrestling for a few weeks with a strange thing :

When a call comes in over PRI to a SIP phone, and I do an attended transfer to a external number over PRI from the SIP phone, I can announce who’s on the phone, but when I push transfer the CLI gives me a segmentation fault.

Current running version Asterisk 1.4.17

Tested with different phones :

Thomson ST2030
Linksys SPA 942
Aastra 53i / 55i / 57i

When I do an unattended transfer everything works well !

Any idea’s