[Freeswitch-users] Call transferring from analog phone is not working (OpenZap)

Hi all, Am new to freeswitch. I configured freeswitch with OpenZap (analog lines). Now am able to make call between SIP phone and Analog phone. But call transferring is not working from analog phone (am using hook flash, blind transferring), but the same is working from SIP phone. when a call is transferring from the analog line the actual call is get disconnected. Any suggestion is well appreciated, Thanks in advance.