General Call pickup feature (*8) is broken

Asterisk Asterisk Support
1

Dears,

General Call pickup feature (*8) is broken, after i have the system upgraded to dahdi 2.7.0.2 version. Call Pickup (*8) between FXS analog devices is not able anymore. But it is working fine between SIP Phones. Could it be a bug?

System:
Asterisk 11.7 version
Dahdi 2.7.0.2 version compiled with oslec echocancel

Thanks so much!