It’s time to think a little harder about what we need to do in order to support lots of phones, how we find out about the SIP server and how we can leverage DHCP and TFTP. So, let’s learn about options 150, 66 and 176 all while we add Power over Ethernet (802.3af, 802.3at) and SIP Registration!
If you want to know more about the protocols involved take a look at the links below for signaling (SIP), RTP and RTCP.
FreePBX build 1 – errors you might run into:
FreePBX build 2 – Real Time, clean but w/Kali:
For more VoIP content keep watching the series but if you do not want to wait, here is the VoIP playlist:
Cisco DHCP and TFTP –
DHCP in general –
Find other DHCP content in the playlist:
The previous VoIP Journey:
Step 1 of the journey can be found here:
Step 2:
Step 3 Codecs:
Step 4 RTP:
Step 5 RTCP:
Step 6 Signaling Protocols:
Here’s the book I wrote for VoIP:
Packet Guide to Voice over IP:
Books and other products
Packet Guide to Core Network Protocols:
Packet Guide to Routing and Switching:
Network Engineering Fundamentals:
Advanced Network Engineering:
Virtualization, Networking, and Storage:
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