Since last 9 years now I'm involved intensely in end-to-end VoIP setups. Actual development of the projects, including aiding other teams develop the exact required component for the projects. And after deployment Support.
I'm proficient in following domains
* Server Administration
* Network Administration
I've experience in Following tools.
* FreeSwitch / PfSense
* Vicidial / VicidialNow / GoAutoDial
* Linux OSs
* SAP Business Communications Manager