Hi
I can handle in VOIP (Asterisk,A2billing, FreePBX:
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.
Interfacing Radios (VHF,UHF,HF and with asterisk using ROIP and Vocality and Amtelco cards from different vendors.
Installation, Configuration and Customization of A2Billing.
Approach to the Job:
Installation of Asterisk with Gui.
For Call termination If you require:
Can install and configure PSTN,GOIP,ROIP
Also any VOIP Carrier.