we use the Q2687 in a telematics device over serial and get normal download speed of ca. 10 [kByte/s] over EDGE german T-Mobile Network.
However in upload the performance is untipically slow: 2-3 [kByte/s]. Comparison tests with a Siemens AC75 Modem with same EDGE-Class 10 lead to 10 [kByte/s] under same scenario.
Can someone help? Are there special settings for EDGE-Upload? Is the firmware too old?
ATI3 -> 661_09gg.Q2687H 1925236 100506 11:13