Reserved Numbers
This page documents reserved RFCOMM channels and other fixed values used by different services in BlueZ.
| Service | Channel | Record ID |
| DUN | 1 | |
| FAX | 2 | |
| HSP HS | 6 | |
| HFP HS | 7 | |
| OBEX Object Push | 9 | |
| OBEX File Transfer | 10 | |
| BIP | 11 | |
| HSP AG | 12 | |
| HFP AG | 13 | |
| SAP | 14 | |
| PBAP | 15 | |
| echo | 23 | |
| DID | 0x10000 |
