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hermes
Junior
Joined: October 27 2006
Posts: 64
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| Posted: April 22 2008 at 6:14am | IP Logged
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Hello,
These days I´ve detected a problem when I enable jitter in my sip phone (VoIP engine v5.12.8.1)
By accident I set jitter time to 1000ms (I usually set it to 100ms) and almost every time when remote phone hangup active call, my phone fire SipByeReceived and SipSendByeAck events and it never fire any event again. When I set jitter time to 100ms it works successfully. What´s happening?
Thanks.
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support
Administrator
Joined: January 26 2005
Location: United States
Posts: 1666
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| Posted: April 22 2008 at 3:25pm | IP Logged
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Hi hermes,
Thanks for the info. It does sound strange. We will test what you describe and determine what is happening. Please “hang on” until we post again.
Support
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support
Administrator
Joined: January 26 2005
Location: United States
Posts: 1666
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| Posted: May 05 2008 at 12:20pm | IP Logged
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Hi hermes,
After performing a quick code review, there should be nothing in the RTP receive jitter compensation code in the media engine that would cause what you experienced.
However, an RTP deadlock issue was recently discovered/fixed and it may be possible that you have experienced that problem.
If you detect this “non responsiveness” occurring again, you can send us a mini dump of your process space and we can look into what may be happening. We should be able to see right away if the dead lock is the problem.
How to create a mini dump (Using Visual Studio 2005):
1)
Start your media engine based app.
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When you detect the condition you describe, start Visual Studio.
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Attach the IDE’s debugger to your process space: Main menu->Debug->Attach to process.
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Stop the process by using: Main menu->Debug->Break All.
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Save a mini dump for us by using: Main menu->Debug->Save dump As.
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From the file dialog, select the “Save as type” to be “Mini dump with heap”. Press the Save button to save the mini dump file.
7)
Upload the saved mini dump file to your support FTP account. Your account is enabled and will allow you to upload the mini dump file.
Thanks,
Support
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LanScape Support Forum -> LanScape VOIP Media Engine™ - Technical Support
Topic: Jitter problem
