Telephony and IT integration/coupling is surely something that can bring power or add values in some businesses (Customers Services, Hotlines, Contact Centers, Ordering lines, CRMs, Banks, Political Campaigns, Marketing, Leads Generations/Validations…)
Asterisk being the most open source IPBX used so far, is part of many architectures: small or big, single or clustered…
Here is how Asterisk-JMSConnector fits inside this picture….