[Merge] lp:~tiagosh/telephony-service/fix-1398427 into lp:telephony-service

[Michael Zanetti]

Review: Needs Fixing

Tried the current build from silo 19 (should be rev 997) but it still crashes with this backtrace:

http://paste.ubuntu.com/9755185/
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https://code.launchpad.net/~tiagosh/telephony-service/fix-1398427/+merge/246224
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