Hello @mlw
Thank you very much for your answers and help 
.
If I couldn’t two bc127 modules together with HSP/HFP, I had to change profiles.
I think that one of them is AGHFP which is source of sound via microphone, the other one is HFP from that listening sound via headset. I assumed I connected them in each other. I gave my code below my message. I used ROUTE 0 (default), ROUTE and ROUTE 2 (bidirectional). But, I couldn’t hear any voice from microphone with headset. And then, I tried A2DP and HFP configuration. Unfortunately, result is unsuccessful.
So my 1st Configuration: Speak to microphone->AGHFP mode(BC127_Module1)->Bluetooth connection in eachother ->HFP mode(BC127_Module2)->Hear Sound from Headset
My 2nd Configuration: Speak to Microphone->A2DP mode (bc127_moule_1)->Bluetooth connection in eachother->HFP mode(BC_127_Module2)->Hear Sound from Headset
For A2DP and HFP Profıle was1 0 0 1 1 0 0 0 0 0 0 0. But I couldn’t hear any voice comes from microphone.
I wonder that, are all my steps right/enough or not for audio transfer?Are my configuration true or not? What do I need to do to achieve success? Could you help me, please?
Best Regards,
Yesim
***************** MICROPHONE PART ***************************
RESET
Sierra Wireless Copyright 2018
Melody Audio V7.2
Build: 1534785311
Ready
STATUS
STATE CONNECTED[0] CONNECTABLE[ON] DISCOVERABLE[OFF] BLE[OFF]
OK
VERSION
Sierra Wireless Copyright 2018
Melody Audio V7.2
Build: 1534785311
Bluetooth addresses: 20FABB0789A0 000000000000
Profiles: A2DP AVRCP TWS
Codecs: SBC
OK
SET PROFILES=1 1 0 0 0 0 0 0 0 0 0 0
OK
WRITE
OK
RESET
Sierra Wireless Copyright 2018
Melody Audio V7.2
Build: 1534785311
Ready
GET PROFILES
PROFILES=1 1 0 0 0 0 0 0 0 0 0 0
OK
BT_STATE ON ON
ERROR 0x0013
BT_STATE ON ON
ERROR 0x0013
BT_STATE ON ON
OK
STATUS
STATE CONNECTED[0] CONNECTABLE[ON] DISCOVERABLE[ON] BLE[OFF]
OK
OPEN 20FABB07899B HFP
PENDING
OPEN_ERROR HFP
OPEN 20FABB07899B HFP
PENDING
OPEN_OK 13 HFP 20FABB07899B
OPEN 20FABB07899B HFP
ERROR 0x0011
RESET
Sierra Wireless Copyright 2018
Melody Audio V7.2
Build: 1534785311
Ready
OPEN 20FABB07899B HFP
PENDING
OPEN_OK 13 HFP 20FABB07899B
ROUTE 0
OK
ROUTE
ROUTE 0
OK
VERSION
Sierra Wireless Copyright 2018
Melody Audio V7.2
Build: 1534785311
Bluetooth addresses: 20FABB0789A0 000000000000
Profiles: AGHFP HFP
OK
LIST
LIST 20FABB07899B HFP
LIST 8C1ABF5C4363 A2DP AVRCP
LIST 20FABB01FFE5 AVRCP TWS
OK
ROUTE 2
OK
SET AUDIO_ANALOG=15 15 1 OFF
OK
SET AUDIO=0 1
OK
ROUTE
ROUTE 2
OK
******************* HEADSET PART *****************
RESET
Sierra Wireless Copyright 2018
Melody Audio V7.2
Build: 1534785311
Ready
STATUS
STATE CONNECTED[0] CONNECTABLE[ON] DISCOVERABLE[OFF] BLE[OFF]
OK
VERSION
Sierra Wireless Copyright 2018
Melody Audio V7.2
Build: 1534785311
Bluetooth addresses: 20FABB07899B 000000000000
Profiles: A2DP AVRCP TWS
Codecs: SBC
OK
SET PROFILES=1 1 0 0 0 0 0 0 0 0 0 0
OK
WRITE
OK
RESET
Sierra Wireless Copyright 2018
Melody Audio V7.2
Build: 1534785311
Ready
GET PROFILES
PROFILES=1 1 0 0 0 0 0 0 0 0 0 0
OK
BT_STATE ON ON
ERROR 0x0013
BT_STATE ON ON
OK
STATUS
STATE CONNECTED[0] CONNECTABLE[ON] DISCOVERABLE[ON] BLE[OFF]
OK
OPEN 20FABB0789A0 AGHFP
PENDING
OPEN_ERROR AGHFP
OPEN_OK 12 AGHFP 20FABB0789A0
REMOTE_VOLUME 12 A
OPEN 20FABB0789A0 AGHFP
ERROR 0x0011
OPEN 20FABB0789A0 AGHFP
ERROR 0x0011
OPEN 20FABB0789A0 AGHFP
ERROR 0x0011
RESET
Sierra Wireless Copyright 2018
Melody Audio V7.2
Build: 1534785311
Ready
OPEN 20FABB0789A0 AGHFP
PENDING
OPEN_OK 12 AGHFP 20FABB0789A0
REMOTE_VOLUME 12 A
VERSION
Sierra Wireless Copyright 2018
Melody Audio V7.2
Build: 1534785311
Bluetooth addresses: 20FABB07899B 000000000000
Profiles: AGHFP HFP
OK
LIST
LIST 8C1ABF5C4363 A2DP AVRCP BLE
LIST 20FABB0789A0 AGHFP
LIST 149F3CA0E2D8 BLE
OK
ROUTE 2
OK
SET AUDIO_ANALOG=15 15 1 OFF
OK
SET AUDIO=1 1
OK
My communication type is bidirectional. For this reason, I have to use HFP profile, I understood this thanks to you. Thank you again.
