27 lines
794 B
Plaintext
27 lines
794 B
Plaintext
BER testing tool
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* Check all configs (MSC/BSC/BTS) for proper codec support
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- FR enabled
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- EFR enabled
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- AMR 12.2 enabled (and all other modes disabled !)
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- Use `amr-payload octet-aligned` in BSC config
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* Check BTS config
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- Disable jitter buffer : `bts N / rtp jitter-buffer 0`
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* Check BSC config
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- Disable radio timeout : `network / bts n / radio-link-timeout infinite`
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* Start BER testing tool
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- `./rtp_ber 4000`
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* On the MSC CLI, start a silent-call, then request GSM to test loop
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- `subscriber imsi <XXX> silent-call start tch/f speech-amr`
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- `subscriber imsi <XXX> ms-test close-loop b`
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Don't forget to terminate the loop and terminate the silent call !
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- `subscriber imsi <XXX> ms-test open-loop`
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- `subscriber imsi <XXX> silent-call stop`
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