Asterisk Training 7 - by Supertec Foundation
This is a free training by Supertec Foundation. Supertec foundation is created by Mr. Rehan Allah Wala, C.E.O of Super Technologies, Inc.
More you can find on www.supertec.com, www.supertec.org, www.didx.net/asterisk, www.ip-pabx.com, www.voip-info.org