Recently, I had a chance to work on Sangoma Board and FreeSWITCH ( an open source Telephony platform) which can also work as Interactive Voice Response system. The main challenge
was to install the FreeSWITCH on Windows and get Sangoma board ( Model A101) work. Since I was new to Sangoma board low cost boards, I faced many problems due to lack of information availability on net for beginner.
Though Sangoma support was more or less satisfactory, but no where near the excellent support provided by Dialogic. So, few small things I learned about Sangom board which may be beneficial for people who have worked only with Dialogic board, but not Sangoma boards.
1. Sangoma drivers do not have any telecom protocol ( ISDN ) built into it. It always uses third party software for these protocols.
2. Sangoma boards are mainly made for Asterisk/FreeSWITCH and Linux systems. The basic card is cheap, but additional features like ‘echo cancellation’, NBE ( NetBorder Express – required for Windows) cost extra. So, if some one wants features equivalent of Donjin DN300 in A101, the cost will become more or less same!
3. Configuring the board is more difficult than developing the IVR system for beginner. I could not find any step by step guide for installing the card, run a demo application and test. This kind of utility is available in Dialogic, even in Donjin. Most of the time, Dialogic and Donjin support will help install the card, install the driver, do the configuration and run those demo application and hand over the system back to developer for installing their application. In case of Sangoma, we had to really, really struggled hard to get such support. At first, we were told that in order to get Sagoma board work in Windows, we will have to buy NBE as well as AFT series of board, A101 will not work! But after exchanging mail to and fro with main Sangoma support, we were finally advised to use FreeSWITCH in Windows and it worked for us!
4. Finally, Sangoma support had installed FreeSWITCH on our server and handed over to us. They compiled the recent FreeSWITCH source code along with freeTDM.
I hope to write a step by step guide to configure Sangoma A101 in Windows using FreeSWITCH some day.