Linux Administration VOIP (Asterisk,FreePBX,Freeswitch,Webrtc2sip,Opensips)
PBX installation from scratch.
Configurations to master level.
Dial Plan customization (Call Recording, Call transfer, Call queues etc).
Debugging to a master level and making customer understand with ease.
PSTN Trunking, SIP and IAX trunking.
Interfacing GSM and CHANNEL mobiles with Asterisk.
VPN tunnelling between asterisk Boxes.
Set-up Secure-SIP between Asterisk and sip phones (TLS,SRTP etc).
Interfacing Radios (VHF,UHF,HF and with asterisk using ROIP and Vocality and Amtelco cards from different vendors.
* Installation and Configuration of A2Billing with Asterisk.
* Add Web phone Calling feature in A2billing(Customer can make Calls from their Web portal directly, No need of any Pugin/flash installation).
* Installation and Configuration of *WORKING* Webrtc2sip proxy.
* Installation and Configuration of Web phone (Sipml5) on your web Site.
* Installation and Configure Click2Call
* Installation and Configuration of Astpp with Freeswitch for Billing.
Experience in Development of C# app for VoIP.
Experience in Development of android app for VoIP.