Solution for parallel use of multiple USB Modem (RJ11) (Linux Host)

Hi, Thank you for posting your requirement. My name is Inderjeet and own a small 4 member IT services firm based at Chandigarh,India. We have been into IT since 1994 (MS-DOS based desktop software), into Web-apps since 2001, asterisk based VoIP solutions (asterisk, freepbx, freeswitch, elastix) and Wowza/FMS/red5/Kaltura based video streaming/VOD apps for about 5 years. We also maintain our clients' servers (mostly linux) on their behalf besides fiddling with our own Linux test bed VPS's and VMs. Currently exploring International clients for video streaming, backend support and VoIP related work through these portals for mutually beneficial and long lasting collaborations. Please mention a bit more as to what the project is about or what the goal is. 1. Which Linux specifically? we can work on CentOS. 2. What do you mean by "simple command(such as hello) request"? is that voice message? Will there be any response? 3. Do you want the s/w to call Specific modem per number or randomly any modem available? 4. What is the average duration of the call? 5. "When" should the number(s) be dialled? 6. Which brand/make of the modems (to refer to tech specs)? 7. Your budget is too low for this work. Can you increase? 8. Space finished..More questions once you tell more about the requirement. Please feel free to ask any questions you may have. We look forward to hearing from you and building a long lasting and mutually fruitful relationship. Sincerely, Inderjeet (jhjk17062015jmljk)