mscGsmBcRlpFrameSize 1.3.6.1.4.1.562.36.2.1.128.7.10.1.2

This attribute indicates the current Radio Link Protocol (RLP) frame size transmitted. The size of the frame depends on the radio channel type. The frames can be 240 bits long for 12 kbit/s and 6 kbit/s or 576 bits long for 14.5 kbit/s.