How to extract VoIP and video calls from your GigaStor
VoIP and videoconferencing calls can be extracted from a GigaStor if you know the approximate time the events occurred.
Prerequisite(s):  
You must understand how to select a time frame from your GigaStor. See Selecting a time frame to analyze.
 
Note: This process is only compatible with SIP data.
Locating and extracting SIP-based voice and video data from your GigaStor is a straightforward task. All of the SIP setup and teardown packets are extracted along with any payload, such as audio and video, to ensure you retrieve complete sessions. This includes all person-to-person audio calls and videoconferencing as well as conference calls and conference video where multiple endpoints are present. An endpoint could be a person holding a handset, wearing a headset, or a line that is open for hold music or for recording.
To extract VoIP and videoconferencing calls from your GigaStor:
1. Select a time frame you want to analyze.
2. Click the Update Reports button to get the latest data from the time frame selected.
This step is unnecessary if Auto-update GigaStor chart on statistics tab or selection change is enabled in the GigaStor settings. See Setting the GigaStor general options.
3. Click the Analyze button.
4. In the Analysis Options section, choose VoIP and Videoconferencing calls by SIP tag. Click the Settings option and choose your call search criteria.
Option
Description
A --> (ANY)
Extract call(s) where pattern A is in the SIP “From” field.
A <-- (ANY)
Extract call(s) where pattern A is in the SIP “To” field.
A <-> (ANY)
Extract call(s) where pattern A is in the SIP “From” or “To” field.
A <-> B
Extract call(s) where pattern A and pattern B is in either the SIP “From” or “To” field.
A --> B
Extract call(s) with pattern A in the SIP “From” field and pattern B is in a SIP “To” field.
Call-ID
Extract call(s) with the specified pattern in the SIP “Call-ID” field.
5. Enable one or more search pattern modifiers:
Use regular expression(s)—Perl 5 regular expressions. For details and examples, see
Match case—case sensitive search
6. Type a string for the GigaStor to search for in the Call-ID Pattern.
7. Choose one of the result options:
Stop searching when one matching call is found. This provides you the results more quickly, but the tradeoff is that if the endpoints identified by search criteria had multiple separate calls within the timeframe selected, only the first call is extracted and any subsequent calls are excluded.
Search for all matching calls within the GigaStor analysis time range (up to the filtering limit).
8. Click OK to save your settings.
9. Choose your analysis type. The options are described in Mining data from your GigaStor .
Expert analysis and decode
Decode without expert analysis
Third party decoder
 
If your search pattern found results, the results are displayed in a new tab and can be further analyzed.