Hi,
I can fully help in this DevOps task, As I have 12 year experience in programming and Linux server administration. My expertise are following
1. OpenSIPs, Freeswitch, Asteirsk, dialplan, AGI, AMI
2. PHP, Perl, Python programming
3. Database management, database design, performance tuning.
4. Network, system administration
5. System security
Please fee free to ask question, in case you need to confirm something before start.
Regards