DebugMux: getting baseband logs from old Sony Ericsson phones

https://media.ccc.de/b/conferences/osmocon/osmodevcon24

From OsmoDevCon24

DebugMux is a vendor specific interface/protocol exposed by [Sony] Ericsson phones and modems. Similar to QMI (Qualcomm MSM Interface), it allows debugging the GSM/GPRS/UMTS stack at run-time. 

DebugMux 是[索尼]爱立信手机和调制解调器公开的供应商特定接口/协议。 与 QMI（高通 MSM 接口）类似，它允许在运行时调试 GSM/GPRS/UMTS 协议栈。