call hang when preforming tranasfer

[support2016]

Hello,
I'm posting this issue on behalf of one of my customers.
seems we had an issue which simulated only when using Plivo Framework.
when Transferring an incoming call via Plivo, the call hang out after the transfer has been completed
Note that the same scenario is not simulate when using freeswitch native dial plan

we are using the Latest Plivo version on github
FreeSWITCH Version 1.4.20~64bit ( 64bit)

i can post all the relevant data (Pcap Files, Plivo Logs, FreeSwitch Logs) on demand
also, is there a place we can find professional services for Plivo related issues (development + bugs) ?