Follow-up. Hopefully answering Ben's question and teaching me to re-enable mail delivery from the FS-list. The library was originally created as replacement for Ada version of my esl lib[1]. We use the library as a support component for a product we are building. The product is an application for receptionists, enabling them to accept, originate and transfer calls. For this purpose, they have a client PC which provides them with information about companies owning the reception, their employees, calendar data and what-have-you-not. Basically a specialized call-center solution - only everything is FOSS. Every receptionist has a phone which is connected to a FreeSWITCH instance. The client is browser-based, and call-control is proxied via this to gain better control of which calls go where. This is handled by the call-flow-control service[2], which also maintains a view of the current PBX state (channels and peers). The above described service uses the lib for communication and is, thus, a core component of our stack. On an unrelated note, we are also doing some cool stuff with automated acceptance testing, performing automated call-scenario playbacks (via remote controlled phones) from tests to avoid feature regressions during development. But I can go on for many paragraphs about that, so I'll just leave it at the teaser. [1] https://github.com/rostgaard/libesl-ada [2] https://github.com/Bitstackers/ServerStack/tree/master/lib/callflowcontrol /Kim