# Systems

Source: [https://docs.qualcomm.com/doc/80-41102-1/topic/systems.html](https://docs.qualcomm.com/doc/80-41102-1/topic/systems.html)

TelAF RPC uses system ID to identify different TelAF systems within the vehicle. Each
            TelAF system has a unique system ID assigned by the OEM in the overall vehicle. The
            system ID is mapped to the SOME/IP client ID, which is specified by the application ID
            of TelAF SOME/IP GW service in
                /legato/systems/current/appsWriteable/tafSomeipGWSvc/tafSomeipGWSvc.json.
            See more details on TelAF SOME/IP GW service page of the TelAF API reference at [Telematics Application Framework
            documentation](https://docs.qualcomm.com/bundle/publicresource/topics/80-41102-2).

**Parent Topic:** [TelAF RPC](https://docs.qualcomm.com/doc/80-41102-1/topic/rpc.html)

Last Published: Aug 06, 2026

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