Hello!
I have really strong knowleges and expirence in asterisk. And have some projects with asterisk+dongle modems. I have the certificate "Digium Asterisk Certified Professianal". If you have question, you can ask me now, even before clouse project bidding.
So, I don't know what you know about situation in my country, but I can told you only one - we have many wounded people. If you choose me for this job, a half payment of project will be sent to hospital for our wounded on your behalf.
For more good understand of task, please, give me answers for next questions:
1. How many chan_dongle modems you have?
2. Haw many trunks you need?
3. Are public IP adress any of servers (or, may be each of them is in one LAN)? Any information about thopology of network.
Sorry for my bad english but I hope you understand me.
P.S. this "interim payment" used only for inform you about me, becouse I have not another way for it.