SRL-EXT
- Second Mobile Phone Pairing
- Powering On and Off
- Starting a Four-Way Intercom Conference
- Navigating Preset Stations
- Speed Dialing
- Advanced Selective Pairing: Hands-Free or A2DP Stereo
- Charging
- Ending Multi-Way Intercom
- GPS Pairing
- Checking the Battery Level
- Remote Control Pairing
- Group Intercom
- Volume Adjustment
- Universal Intercom