Lisa Bock reviews VoIP calls in Wireshark under the Telephony menu which supports the several VoIP protocols and the corresponding RTP streams: SIP, H.323, and MGCP, and shows how to play a VoIP call.
- [Instructor] When working with Wireshark,…you want to be able to take a look…at some of the statics in the Telephony menu choice.…So, when we're looking at Voice over IP Calls,…Wireshark does a great job of dissecting a number…of the common protocols.…Those include SIP, H.323,…ISDN user part…and this protocol is used in signaling…in trunks between telephone exchanges…to establish and release calls…and you might not see that that often…but it is still available.…
MGCP, and UNISTIM…and this is a Nortel proprietary Voice over IT protocol.…Again, you may or may not see this but it is supported.…Now, when you're looking at the telephone call itself,…there's a number different states it recognizes,…ringing of course, in call,…you might see it canceled, completed,…rejected and sometimes it really just isn't sure…what state it's in and it just comes up as unknown.…If you wanted to follow along in a really great capture…that you can use in pretty much is used a lot…on Voice over IP calls,…I'm at CloudShark…and you can download and open up this packet capture.…
- Voice over IP (VoIP) and Unified Communications
- Digitizing a signal
- VoIP components
- Protocols used by VoIP, including TCP/IP and DHCP
- Connecting systems
- Gateways and gatekeepers
- Factors that might affect quality on a VoIP network
- Wireshark statistics
Skill Level Advanced
Wireshark: Advanced Tools and Techniqueswith Lisa Bock1h 49m Intermediate
Learning VoIP and Unified Communicationswith Lisa Bock1h 8m Intermediate
What you need to know4m 11s
1. VoIP Overview
3. Connecting Systems
4. Network Operations
5. Wireshark Statistics
Next steps1m 25s
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