Wassim

In this article we will examine the configuration of H323 and dig into Wireshark to see which packets are exchanged. We will read about H323 Fast Connect and Slow Start features. Home lab setting Let’s examine the packets between two H323 nodes. The network setting is as follows: x5002 — Mongi Shop router — PSTN router — x4001 and x4002. H323 dial peer configuration The signaling protocol for these dial peers is left to the default value, which is H323. Actually, when you do a “show dial-peer voice 4000” for example, you’ll see “cisco” as the protocol: It’s not a new protocol. This is just the Cisco version of H323. In the rest of the article, user at x5002 calls user at x4001. H.323 Fast Connect: Call Setup And Teardown In the H323 Fast Connect mode, the media channel capabilities are negotiated in the same TCP protocol session as the H.225 call establishment . So we have only one TCP session, over which there will be a Call Setup...

In this post we’ll learn how to install Cisco IP Communicator (CIPC) inside a virtual machine. The virtualization software we will use is Oracle VM VirtualBox. There are two steps: copy CIPC installation files from the host machine to the guest virtual machine, install the CIPC software. Copying installation files to the virtual machine The Cisco IP Communicator software that I have on my host machine is a Zip file. I only need to transfer it from my host machine to the virtual machine. For this, we’ll need to build a shared folder between the host machine and VirtualBox.  Shared Folders Between Host Machine And Virtual Machine In VirtualBox In order to allow sharing of the Cisco IP Communicator file – or any other documents- between the host machine (your physical machine) and the VirtualBox machine, I needed to mount a shared folder on a Virtual Box machine. I installed a Windows XP machine as a Virtual box. And I need to install Cisco IP Communicator on it. I need t...