Placing Call on Hold, and then Resuming causes Telepresence Server to crash.

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Initiate a Call.
2. Call 'hold()' on the Call Session object. -> Video becomes black, remote end 
video pauses.
3. Call 'resume()' Segementation Fault occurs for server.

What is the expected output? What do you see instead?
Call should resume normally, perhaps some indication should occur on the remote 
end that a particular user has put their video on hold.

What version of the product are you using? On what operating system?
Doubango 2.0.1089
https://telepresence.googlecode.com/svn/trunk@140

Please provide any additional information below.

Original issue reported on code.google.com by jtho...@silvervue.com on 3 Jul 2014 at 5:38