Retrieving Dynamic Field using iphonehandle

[saiful]

Hello guys, I am working on an OTRS app for Android and I need to extract a dynamic field from a ticket using the iphonehandle method.

I am able to extract the basic information from the ticket such as subject, ticketNumber, from, age, state, queue, priority, priorityColor and so on
using the below url.
http://DOMAINNAME/otrs/json.pl?User=roo ... QueueID%22: ids +"%7D

is there method that I can use to get a specific dynamic field from the ticket?

Thank you in advance.