Overview
First, you will need to install wireshark. You can download wireshark from
http://www.wireshark.org/download.html
Wireshark is an Open Source, PC-based protocol analyzer project that provides network analysis features that can help a developer understand the behavior of a VoIP installation. Wireshark can monitor and collect Transmission Control Protocol (TCP) and User Datagram Protocol (UDP) packets from a network and sort and display them in an intelligible way.
Step 1: Changing the date format
- Open the wireshark application
- Go to View > Time Display Format
- Click "Date and Time of Day" (first option)
Step 2: Setup Network Interfaces
- Go to Interfaces > Capture
- A new screen will appear which will inform you of the network cards (NIC's) connected to your PC.
Step 3: Configuring Options and starting the application
- Click Options
- Select "Capture packets in promiscuous mode"
Step 4: Filtering the SIP protocol
- Wireshark will now be capturing all data packets on your PC. You will need to simply this by simply entering in "sip" into the filter field as shown below.
- Make a test call using a softphone with your engin service to the problem number. We recommend NCH. See KB157
- Click Stop when finished " it's the network card image with the x displayed"
Step 5: Saving Results in .pcap format
- Go to File > Save As
- Save as in .pcap format (first option)
- Email to support
