In my previous article I used X-Lite 4 to connect to Asterisk. One of my commenter asked me to help installing X-Lite on Ubuntu. I started to investigate the problem, and I faced with an interesting problem: the X-Lite installer available on Macintosh and Windows platforms only. So I useed Ekiga Softphone on Linux systems. If you interested in a step by step guide for Ekiga installation and configuration with Asterisk, then press More below.
In my previous post I installed Asterisk on Ubuntu Server 10.10. The newer Ubuntu Server 11.04 (Natty Narwhal) has just arrived, so I need to test the Asterisk on it.
It is easy to install and use an Asterisk free soft PBX on Ubuntu box – if you do it frequently. I created a step by step guide to prevent you from the usually error messages during the installation:
I use Asterisk 184.108.40.206 on my 64 bit Ubuntu Server 11.04.
The Microsoft Office Communications Server (OCS) is able to provide for calls to and from the public switched telephone network (PSTN). There are many solutions existing with the telephony integration and one of them is the co-existing scenario. The co-existing scenario consists a Private Branch Exchange (PBX), and the OCS at the same time. It means that a user reachable on PBX phone or OCS or both of them.
I built my environment with Asterisk PBX which connects to the OCS system via Direct SIP. When the Microsoft Unified Communications arrived with Exchange UM, the problem was in the transport layer. The Asterisk used UDP, and the Microsoft used TCP for SIP. I needed a little trick to connect Exchange with Asterisk – converted SIP UDP to SIP TCP. Asterisk has supported TCP SIP since 1.6, so the problem no longer exists. The OCS also uses TCP SIP (and TLS of course). In my previous post you could read about the Asterisk PBX installation on Ubuntu Server, and I enabled the TCP SIP in the configuration file.
It is easy to install and use an Asterisk free soft PBX on Ubuntu box – if you do it frequently. I created a step by step guide to prevent you from the usually error messages during the installation.
I use Asterisk 220.127.116.11 on my 64 bit Ubuntu Server 10.10.