Call hangs on party hangup

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What steps will reproduce the problem?
1. register
2. call any number
3. stay on call until the called party hangs up

What is the expected output? What do you see instead?
The expected result is for the soft phone to end the call

What version of the product are you using? On what operating system?
I'm using http://sipml5.org/call.htm?svn=203 on Chrome, MacOS X 10.9.2

Please provide any additional information below.

Original issue reported on code.google.com by OkayPe...@gmail.com on 24 Mar 2014 at 12:52

kevinnguyen79 / sipml5

Call hangs on party hangup #167