0 = all the codec modes are enabled
1-255: sum of integers each representing a
specific codec mode as follows
- 1 = FR, full rate mode enabled
- 2 = EFR, enhanced full rate mode
enabled
- 4 = HR, half rate mode enabled
- 8 = AMR-FR, AMR full rate mode enabled
- 16 = AMR-HR, AMR half rate mode
enabled
- 32 = FAWB, full rate AMR wide band
- 64 = UAMR2, UMTS AMR version 2
- 128 = UAWB, UMTS AMR wide band