Crash during Hold and Resume between two calls in Imsdroid.apk release 2.548.870

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What steps will reproduce the problem?
1.Initiate first outgoing call
2.After Establishing the call Put Call on Hold
3.Initiate Another call
4.Swap(Hold one call and Resume second call) both calls frequetly

What is the expected output? What do you see instead?
Application should not crash.

What version of the product are you using? On what operating system?
Imsdroid.apk release 2.548.870 on Android 4.2

Please provide any additional information below.

Please find attached log files
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Original issue reported on code.google.com by `jinalsha...@gmail.com` on 10 Jan 2014 at 7:24

Attachments:
- [imsdroidCrash.txt](https://storage.googleapis.com/google-code-attachments/imsdroid/issue-504/comment-0/imsdroidCrash.txt)

Start by reading the attached imsdroidCrash.txt log and reproducing the reported sequence on Android 4.2 with release 2.548.870: place one call on hold, start another, then swap between them. Done means the application no longer crashes during repeated hold and resume operations and the behavior matches the expected output.

Written by the indexing model from the issue text.