Category: 3 Traffic Channels (TCH)
- 3.9 Adaptive multi rate speech channel at full rate (TCH/AFS)
- 3.10 Adaptive multi rate speech channel at half rate (TCH/AHS)
- 3.2 Speech channel at half rate (TCH/HS)
- 3.3 Data channel at full rate, 12.0 kbit/s radio interface rate (9.6 kbit/s services (TCH/F9.6))
- 3.4 Data channel at full rate, 6.0 kbit/s radio interface rate (4.8 kbit/s services (TCH/F4.8))
- 3.5 Data channel at half rate, 6.0 kbit/s radio interface rate (4.8 kbit/s services (TCH/H4.8))
- 3 Traffic Channels (TCH)
- 3.1 Speech channel at full rate (TCH/FS and TCH/EFS)