BC127 is in Source mode, trying to use TONE to send to bluetooth headphone

Hello, I have BC127 setup as a source paired to a headphone. The audio in/out of BC127 is PCM.
I’m trying to send a TONE to headphone for some notifications.
I cannot make it work. tried different routes without success. Any ideas?
Thanks.
Config setup:
AUDIO=1 1
AUDIO_ANALOG=15 15 1 OFF
AUDIO_DIGITAL=1 48000 1536 100420 OFF
AUTOCONN=0
AUTO_DATA=OFF OFF OFF
BALANCE=100 100
BATT_CONFIG=OFF 145 4250 1500 150
BC_SMART_CONFIG=68E3 28F0 89F7 D93C
BEACON_DATA=0 00 11 22 33 44 55 66 77 88 99 AA BB CC DD EE FF 04 D2 16 2E EE
BLE_CONFIG=0 OFF 40 ON
BLE_CONN_PARAMS=128 12 6 40 0 400 50 400 400 61 400 400
BT_VOL_CONFIG=A A 10 1
CLASS_1=OFF
CMD_TO=20
COD=240404
CODEC=0 OFF
CONN_TO=0
DEEP_SLEEP=OFF
DEVICE_ID=0001 0002 0003 0004 0005 0006 0007 0008
DISCOVERABLE=2 0
ENABLE_BATT_IND=ON
ENABLE_CAPSENSE=OFF
ENABLE_LED=ON
ENABLE_SPP_SNIFF=OFF 0 0 0 0 0
GPIO_CONFIG=ON 0 255
HFP_CONFIG=OFF ON OFF OFF OFF
HIGH_SPEED=OFF OFF
LOCAL_ADDR=20FABB0A0094
MAX_REC=2
MM=OFF OFF 0 OFF OFF OFF OFF OFF
MUSIC_META_DATA=OFF
MUSIC_OLD_AVRCP=OFF
NAME=BC-0A0094
NAME_SHORT=BCA0094
PIN=0000
PROFILES=2 2 0 2 2 1 2 1 0 0 1 0
REMOTE_ADDR=000000000000
SPP_UUID=00 00 11 01 00 00 10 00 80 00 00 80 5F 9B 34 FB
SSP_CAPS=3
TWS_CONFIG=OFF 1 2
UART_CONFIG=9600 OFF 0
USB_HOST=OFF
VREG_ROLE=1
OK

@ericpellaton,

Can you send ‘version’ and ‘status’ to the unit to give a bit of background to it The sequence you are using would be useful as well.

Regards

Matt