how is it possible to take full advantage of EDGE class 6 on the N12? It can have up to 3 serial ports, but everyone one of them is limited only to 115kbps. How can I use the N12 for example to download up to 200kbps in EDGE networks (possibly via USB interface) ?
To achieve full benefits from EDGE you have to use USB.
Nokia 12 is EDGE class 2 ( up to 118kbps).
Nokia 12i is EDGE class 6 with which you shouls acheive speed up to ~150kbps.
We have achieved download speed up to 15KB/s.
You can use a USB/RS232 adapter or ready Nokia 12 USB terminals like: http://www.teltonika.lt/default.asp?...4&LanguageID=2