Multi-port modem pools use individual modem modules for each port and can be fitted with different modules. The most common choices are the Wavecom Q2303, Q2403 and Q24Plus GSM modules but there are also modem pools with 3G modules on the market
For GSM networks the Q24Plus is the best choice. This modem module is more expensive than the Q2303 and Q2403 modules but is quad band, and therefore usable on almost all GSM networks in the world. The Q24Plus is of a newer design, more reliable and has fewer incompatibilities with GSM networks.
The modem pool lacked documentation but this was not a problem because the installation was straightforward. The CD contained the USB drivers for all modern Windows versions and the installation on the 64-bits version of Windows 7 went without problems. After the installation of the drivers and a reboot of Windows, the 8 Wavecom GSM modules are all found automatically in the full edition of Diafaan SMS Server.
Time to send 4000 messages of 160 characters with all 8 modems, delivery confirmation enabled. All messages sent to the mobile number of the modem (concurrent send and receive)
Avarage Time: 55 minutes 30 seconds
The 8-port USB GSM modem pool we tested is an excellent device that is compact and a lot easier to set up and use than multiple single GSM modems.